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EMPLOYEE STOCK COMPENSATION - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
May. 21, 2014 | Jul. 16, 2013 | Aug. 21, 2012 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Compensation expense |  |  |  | $ 9,100 | $ 6,300 | $ 2,900
Total income tax benefit / (expense) |  |  |  | $ 3,800 | 2,700 | 0
Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Expiration period of vested portion of all SARs following the cessation of service |  |  |  | 90 days |  |
Stock appreciation rights |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Compensation expense |  |  |  | $ 202 | 2,000 | 1,100
Total income tax benefit / (expense) |  |  |  | $ 85 | $ 827 | $ 0
SARs granted (in shares) |  |  |  | 2,973 | 768,576 | 325,451
Stock option awards | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period |  |  |  | 3 years |  |
Award expiration period |  |  |  | 7 years |  |
Stock option awards | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period |  |  |  | 5 years |  |
Award expiration period |  |  |  | 10 years |  |
Restricted stock awards and restricted stock units | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period |  |  |  | 1 year |  |
Restricted stock awards and restricted stock units | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting period |  |  |  | 5 years |  |
Initial SAR | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award expiration period |  |  | 10 years |  |  |
SARs granted (in shares) |  |  | 500,000 |  |  |
Base price per share |  |  | $ 12.12 |  |  |
Expiration period of vested portion of all SARs following the cessation of service |  |  |  | 90 days |  |
Initial SAR | Tranche One | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Initial SAR | Tranche Two | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Initial SAR | Tranche Three | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Additional SAR I-V, VII-VIII | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award expiration period |  |  |  | 10 years |  |
Additional SAR I-V, VII-VIII | Tranche One | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Additional SAR I-V, VII-VIII | Tranche Two | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Additional SAR I-V, VII-VIII | Tranche Three | Chief Executive Officer |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vesting award rights |  |  |  | 33.33% |  |
Additional SAR VI |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Additional SAR original shares of common stock a scheduled vesting | 300,219 |  |  |  |  |
2013 Omnibus Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock shares authorized percentage under the plan |  | 20.00% |  |  |  |
Minimum requirement of number of shares authorized |  | 2,384,711 |  |  |  |
Common stock available under new plan |  |  |  | 2,171,553 |  |

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