Acquisition and Investment - Additional Information - PM Group Acquisition (Detail)
€ in Thousands, $ in Thousands |
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12 Months Ended |
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Jan. 15, 2015
USD ($)
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Dec. 31, 2016
USD ($)
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Dec. 31, 2015
USD ($)
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Jan. 15, 2015
EUR (€)
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Dec. 31, 2014
USD ($)
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| Business Acquisition [Line Items] |
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| Goodwill |
$ 30,173
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$ 70,248
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$ 71,337
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$ 43,741
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| PM Group [Member] |
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| Business Acquisition [Line Items] |
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| Acquisition closing date |
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Jan. 15, 2015
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| Goodwill |
30,173
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€ 25,528
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| PM Group [Member] | Legal Fees [Member] |
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| Business Acquisition [Line Items] |
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| Acquisition transaction costs |
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$ 194
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| PM Group [Member] | Acquisition Related Bonus Payments [Member] |
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| Business Acquisition [Line Items] |
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| Acquisition transaction costs |
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750
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| PM Group [Member] | Accounting Services Fees [Member] |
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| Business Acquisition [Line Items] |
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| Acquisition transaction costs |
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347
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| PM Group [Member] | Other Acquisition Related Costs [Member] |
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| Business Acquisition [Line Items] |
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| Acquisition transaction costs |
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$ 294
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| PM Group [Member] | Accounts Receivable [Member] |
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| Business Acquisition [Line Items] |
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| Fair market adjustments to accounts receivables, fixed assets and inventory |
(260)
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| PM Group [Member] | Inventories [Member] |
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| Business Acquisition [Line Items] |
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| Fair market adjustments to accounts receivables, fixed assets and inventory |
911
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| PM Group [Member] | Fixed Assets [Member] |
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| Business Acquisition [Line Items] |
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| Fair market adjustments to accounts receivables, fixed assets and inventory |
(4,699)
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| PM Group [Member] | Liabilities [Member] |
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| Business Acquisition [Line Items] |
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| Fair market adjustments to accounts receivables, fixed assets and inventory |
345
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| PM Group [Member] | Term Debt [Member] | Non Interest Bearing Promissory Note |
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| Business Acquisition [Line Items] |
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| Term debt | € |
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10,289
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| Fair value of Term debt |
$ 10,435
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€ 8,829
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| Risk rate of non-interest bearing debt |
5.24%
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