LONG-TERM DEBT (Details)
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3 Months Ended |
6 Months Ended |
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Aug. 01, 2014
USD ($)
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Jun. 30, 2016
USD ($)
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Jun. 30, 2015
USD ($)
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Jun. 30, 2016
USD ($)
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Jun. 30, 2015
USD ($)
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Dec. 31, 2015
USD ($)
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May 07, 2013
USD ($)
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| Debt |
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| Available for sale securities |
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$ 38,087,000
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$ 38,087,000
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$ 0
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| Senior secured term loan |
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482,626,000
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482,626,000
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536,598,000
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| Less: debt issuance costs, net |
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(5,071,000)
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(5,071,000)
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(6,184,000)
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| Less: unamortized discount, net |
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(1,834,000)
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(1,834,000)
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(2,236,000)
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| Net long-term debt |
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475,721,000
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475,721,000
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528,178,000
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| Less: current portion |
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(5,945,000)
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(5,945,000)
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(5,945,000)
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| Long-term debt, less current portion |
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469,776,000
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469,776,000
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522,233,000
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| Extinguishment of debt, amount |
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$ 51,000,000
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$ 16,000,000
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| Percentage discount of par received on early extinguishment of debt |
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13.20%
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9.00%
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| Gains (losses) on extinguishment of debt |
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$ 5,464,000
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$ 1,114,000
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5,464,000
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$ 1,114,000
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| Interest on long-term debt |
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5,988,000
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7,195,000
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12,529,000
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14,355,000
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| Senior secured term loan |
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| Debt |
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| Less: debt issuance costs, net |
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$ (5,100,000)
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(5,100,000)
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(6,200,000)
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| Debt instrument accordion feature increase in additional borrowings |
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$ 200,000,000.0
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| Aggregate amount of each consecutive quarterly scheduled principal installment |
$ 1,486,000
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| Mandatory prepayments owed |
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$ 0
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| Interest rate at the end of the period (as a percent) |
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4.50%
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4.50%
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| Accumulated amortization |
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$ 5,200,000
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$ 5,200,000
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$ 4,100,000
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| Interest on long-term debt |
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$ 6,000,000
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$ 7,200,000
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$ 12,500,000
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$ 14,400,000
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| Senior secured term loan | Maximum |
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| Debt |
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| Leverage ratio to be maintained under the credit facility covenants |
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3.0
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| Covenant threshold, leverage ratio |
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3.50
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| Number of days within which the entity fails to pay principal when due or interest or any other amount owing on any other obligation under the credit agreement, is considered as event of default |
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5 days
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| Amount of principal or interest if failed to pay considered as event of default |
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$ 40,000,000
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| Amount of debt which results in acceleration of debt if failed to pay considered as event of default |
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40,000,000
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| Amount of unbonded, undischarged or unstayed debt under entry by court of one or more judgments for certain period to determine as event of default |
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$ 40,000,000
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| Senior secured term loan | Minimum |
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| Debt |
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| Leverage ratio to be maintained under the credit facility covenants |
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1.00
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| Covenant threshold, leverage ratio |
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1.00
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| Senior secured term loan | Adjusted Eurodollar Rate |
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| Debt |
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| Reference rate |
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Adjusted Eurodollar Rate
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| Fixed interest rate base (as a percent) |
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1.00%
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| Interest rate margin (as a percent) |
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3.50%
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| Senior secured term loan | Base Rate |
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| Debt |
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| Reference rate |
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Base Rate
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| Fixed interest rate base (as a percent) |
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2.00%
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| Interest rate margin (as a percent) |
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2.50%
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