Acquisitions - Narrative (Details) $ / shares in Units, $ in Thousands |
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3 Months Ended |
9 Months Ended |
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Sep. 30, 2016
USD ($)
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Jul. 27, 2016
USD ($)
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Apr. 06, 2016
USD ($)
$ / shares
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Jul. 31, 2015
USD ($)
shares
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Jul. 02, 2015
USD ($)
$ / shares
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Apr. 17, 2015
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Jan. 20, 2015
USD ($)
$ / shares
shares
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Sep. 30, 2016
USD ($)
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Sep. 30, 2015
USD ($)
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Mar. 31, 2015
USD ($)
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Sep. 30, 2016
USD ($)
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Sep. 30, 2015
USD ($)
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Dec. 31, 2015
USD ($)
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Feb. 04, 2015
£ / shares
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Jan. 19, 2015 |
| Business Acquisition [Line Items] |
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| Goodwill |
$ 191,397
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$ 191,397
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$ 191,397
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$ 101,853
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| CoSine |
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| Business Acquisition [Line Items] |
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| Ownership percentage |
91.20%
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91.20%
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91.20%
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90.80%
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| Order backlog | Minimum |
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| Business Acquisition [Line Items] |
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| Useful life (in years) |
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2 months
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| Order backlog | Maximum |
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| Business Acquisition [Line Items] |
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| Useful life (in years) |
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8 months
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| Other intangible assets | Minimum |
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| Business Acquisition [Line Items] |
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| Useful life (in years) |
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10 years
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| Other intangible assets | Maximum |
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| Business Acquisition [Line Items] |
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| Useful life (in years) |
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15 years
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| Steel Partners Holdings L.P. |
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| Business Acquisition [Line Items] |
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| Ownership percentage |
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25.10%
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| Handy & Harman Ltd. (HNH) |
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| Business Acquisition [Line Items] |
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| Fair value of consideration paid |
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$ 161,985
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| Cash to acquire businesses |
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$ 122,191
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| Equity component |
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39794
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| SPH Holdings |
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| Business Acquisition [Line Items] |
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| Fair value of equity |
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$ 12,011
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| Fair value (in dollars per share) | $ / shares |
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$ 2.51
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| SPH Holdings | CoSine |
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| Business Acquisition [Line Items] |
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| Ownership percentage |
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48.00%
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| Electromagnetic Enterprise (EME) | Handy & Harman Ltd. (HNH) |
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| Business Acquisition [Line Items] |
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| Fair value of consideration paid |
$ 64,500
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| Goodwill |
$ 32,686
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$ 32,686
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$ 32,686
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| Useful life |
15 years
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| Property, plant and equipment |
$ 1,967
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1,967
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1,967
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| Contingent liability |
6,252
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6,252
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6,252
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| Other intangible assets |
28,820
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28,820
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28,820
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| Electromagnetic Enterprise (EME) | Handy & Harman Ltd. (HNH) | Customer Relationships |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
28,820
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| Hazen Paper | API |
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| Business Acquisition [Line Items] |
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| Fair value of consideration paid |
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$ 14,000
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| Goodwill |
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4,100
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| Intangibles acquired |
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2,700
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| Property, plant and equipment |
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$ 6,200
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| SLI | Handy & Harman Ltd. (HNH) |
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| Business Acquisition [Line Items] |
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| Goodwill |
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$ 54,317
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| Property, plant and equipment |
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$ 23,950
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| Price per share (per share) | $ / shares |
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$ 40.00
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| Unowned voting interests acquired |
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60.00%
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| Contingent liability |
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$ 76,967
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| Revenue |
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48,300
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60,100
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| Operating loss |
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200
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3,000
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| Accelerated compensation |
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1,900
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| Other intangible assets |
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$ 87,916
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| SLI | Handy & Harman Ltd. (HNH) | Fair Value Adjustment to Inventory |
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| Business Acquisition [Line Items] |
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| Operating loss |
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1,900
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| SLI | Handy & Harman Ltd. (HNH) | Minimum |
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| Business Acquisition [Line Items] |
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| Useful life |
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10 years
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| SLI | Handy & Harman Ltd. (HNH) | Maximum |
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| Business Acquisition [Line Items] |
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| Useful life |
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15 years
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| SLI | Handy & Harman Ltd. (HNH) | Trade Names |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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$ 14,600
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| SLI | Handy & Harman Ltd. (HNH) | Customer Relationships |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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59,500
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| SLI | Handy & Harman Ltd. (HNH) | Technology-Based Intangible Assets |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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10,600
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| SLI | Handy & Harman Ltd. (HNH) | Order backlog |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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3,100
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| SL Industries, Inc. (SLI) | Handy & Harman Ltd. (HNH) |
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| Business Acquisition [Line Items] |
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| Goodwill |
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54,317
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) |
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| Business Acquisition [Line Items] |
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| Fair value of consideration paid |
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$ 114,493
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| Goodwill |
$ 32,162
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32,162
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$ 32,162
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32,162
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| Property, plant and equipment |
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$ 45,384
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| Price per share (per share) | $ / shares |
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$ 11.00
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| Cash to acquire businesses |
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$ 70,255
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| Contingent liability |
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48,383
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| Revenue |
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$ 28,100
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28,100
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| Operating loss |
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2,300
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$ 2,300
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| Payment to acquire business, shares | shares |
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1,429,407
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| Value of shares issued |
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$ 48,700
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| Voting interest acquired (as a percent) |
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100.00%
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| Other intangible assets |
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9,120
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Fair Value Adjustment to Inventory |
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| Business Acquisition [Line Items] |
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| Operating loss |
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$ (3,300)
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$ 3,300
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Minimum |
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| Business Acquisition [Line Items] |
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| Useful life |
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10 years
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Maximum |
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| Business Acquisition [Line Items] |
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| Useful life |
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15 years
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Trade Names |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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$ 4,300
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Customer Relationships |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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3,100
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| JPS Industries, Inc. | Handy & Harman Ltd. (HNH) | Technology-Based Intangible Assets |
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| Business Acquisition [Line Items] |
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| Intangibles acquired |
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1,700
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| JPS Industries, Inc. | SPH Group Holdings LLC |
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| Business Acquisition [Line Items] |
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| Cash to acquire businesses |
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4,510
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| Fair value of equity |
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$ 44,238
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| CoSine Communications, Inc. (CoSine) |
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| Business Acquisition [Line Items] |
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| Fair value of consideration paid |
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$ 66,239
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| Goodwill |
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8,295
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| Contingent liability |
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$ 1,063
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| CoSine Communications, Inc. (CoSine) | SPH Holdings |
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| Business Acquisition [Line Items] |
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| Price per share (per share) | £ / shares |
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£ 0.60
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| Voting interest acquired (as a percent) |
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80.00%
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| Investment gain |
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$ 6,900
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| CoSine Communications, Inc. (CoSine) | SPH Holdings | Common Stock |
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|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of shares acquired | shares |
|
|
|
|
|
|
16,500,000
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | SPH Holdings | Preferred Stock |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of shares acquired | shares |
|
|
|
|
|
|
12,761
|
|
|
|
|
|
|
|
|
| Dividend rate (as a percent) |
|
|
|
|
|
|
7.50%
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | SPH Holdings | API Group plc (API) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shares contributed | shares |
|
|
|
|
|
|
24,807,203
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | SPH Holdings | Nathan's Famous, Inc. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shares contributed | shares |
|
|
|
|
|
|
445,456
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | SPH Holdings | Bidco |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Ownership percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
98.00%
|
|
| CoSine Communications, Inc. (CoSine) | API Technologies Corp. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Fair value of consideration paid |
|
|
|
|
|
|
$ 22,823
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | CoSine Communications, Inc. (CoSine) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Fair value of consideration paid |
|
|
|
|
|
|
12,011
|
|
|
|
|
|
|
|
|
| CoSine Communications, Inc. (CoSine) | Nathan's Famous, Inc. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Fair value of consideration paid |
|
|
|
|
|
|
31,405
|
|
|
|
|
|
|
|
|
| API Group plc (API) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Fair value of consideration paid |
|
|
|
|
|
$ 47,866
|
$ 22,861
|
|
|
|
$ 70,727
|
|
|
|
|
| Goodwill |
|
|
|
|
|
14,456
|
|
|
|
|
|
|
|
|
|
| Property, plant and equipment |
|
|
|
|
|
42,238
|
|
|
|
|
|
|
|
|
|
| Contingent liability |
|
|
|
|
|
70,854
|
|
|
|
|
|
|
|
|
|
| Other intangible assets |
|
|
|
|
|
22,749
|
|
|
|
|
|
|
|
|
|
| API Group plc (API) | Trade Names |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Other intangible assets |
|
|
|
|
|
$ 5,100
|
|
|
|
|
|
|
|
|
|
| Useful life (in years) |
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
|
| API Group plc (API) | Customer Relationships |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Other intangible assets |
|
|
|
|
|
$ 17,700
|
|
|
|
|
|
|
|
|
|
| Useful life (in years) |
|
|
|
|
|
7 years
|
|
|
|
|
|
|
|
|
|
| Environmental and Other Matters | SLI | Handy & Harman Ltd. (HNH) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Business Acquisition [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Contingent liability |
|
|
$ 7,500
|
|
|
|
|
|
|
|
|
|
|
|
|