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STOCKHOLDER'S EQUITY (Details) (USD $)
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3 Months Ended | 3 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 3 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | ||||||||
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Mar. 31, 2014
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Mar. 31, 2013
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Dec. 31, 2013
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Mar. 31, 2014
Restricted stock unit
Performance Vesting
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Jan. 02, 2014
Board of Director
item
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Dec. 31, 2014
Members of management
Restricted stock unit
Performance Vesting
Recognized during 2014
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Jan. 02, 2014
2013 Equity Incentive Plan
Stock options
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Mar. 31, 2014
2013 Equity Incentive Plan
Stock options
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Jan. 02, 2014
2013 Equity Incentive Plan
Board of Director
Stock options
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Mar. 31, 2014
2013 Equity Incentive Plan
Board of Director
Stock options
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
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Mar. 31, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
Minimum
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
Maximum
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
30%
Minimum
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management and executive officers
Restricted stock unit
Performance Vesting
150%
Maximum
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Jan. 02, 2014
2013 Equity Incentive Plan
Members of management
Restricted stock unit
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Mar. 31, 2014
2013 Equity Incentive Plan
Members of management
Restricted stock unit
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Dec. 31, 2014
2013 Equity Incentive Plan
Members of management
Restricted stock unit
Performance Vesting
Recognized during 2014
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Jan. 02, 2014
2013 Equity Incentive Plan
Executive officers
Restricted stock unit
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Mar. 31, 2014
2013 Equity Incentive Plan
Executive officers
Restricted stock unit
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Jan. 02, 2014
Class A common stock
2013 Equity Incentive Plan
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Jan. 02, 2014
Class A common stock
2013 Equity Incentive Plan
Board of Director
Stock options
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| STOCKHOLDER'S EQUITY | |||||||||||||||||||||||
| Shares owned by holding entity | 1 | 1 | |||||||||||||||||||||
| Stock-based compensation expense included in general and administrative | $ 6,357,000 | $ 0 | $ 202,000 | $ 1,231,000 | $ 2,328,000 | $ 4,924,000 | $ 2,596,000 | ||||||||||||||||
| Increase to additional paid-in capital related to stock based compensation | 6,357,000 | ||||||||||||||||||||||
| Total estimated unrecognized compensation cost related to nonvested stock-based compensation arrangements | 3,693,000 | ||||||||||||||||||||||
| Number of shares authorized | 9,474,000 | ||||||||||||||||||||||
| Number of shares remaining available for grant | 8,615,792 | ||||||||||||||||||||||
| Fair value of stock at grant date (in dollars per share) | $ 20.18 | ||||||||||||||||||||||
| Number of Board of Directors to whom common stock was granted | 2 | ||||||||||||||||||||||
| Shares granted | 10,004 | 5,002 | |||||||||||||||||||||
| Number of shares that will be received under each RSU | 1 | ||||||||||||||||||||||
| Number of days form the termination of service for settlement of fully vested RSU | 60 days | 60 days | |||||||||||||||||||||
| Grant date fair value (in dollars) | $ 2,596,000 | ||||||||||||||||||||||
| Service condition term | 1 year | ||||||||||||||||||||||
| PSUs vesting as a percentage of performance target | 80.00% | 120.00% | |||||||||||||||||||||
| Percentage of performance target | 100.00% | 30.00% | 150.00% | ||||||||||||||||||||
| Awards to be granted on achieving specified percentage of performance target (in shares) | 244,016 | ||||||||||||||||||||||
| Number of PSUs vesting, if Holdings does not achieve free cash flow minimum performance target | 0 | ||||||||||||||||||||||
| Expected performance target to be achieved (as a percent) | 100.00% | 100.00% | |||||||||||||||||||||
| Shares of RSU and PSU | |||||||||||||||||||||||
| Granted (in shares) | 488,032 | 115,375 | 128,641 | ||||||||||||||||||||
| Vested (in shares) | (115,375) | ||||||||||||||||||||||
| Unvested at the end of the period (in shares) | 372,657 | ||||||||||||||||||||||
| Weighted Average Grant Date Fair Value | |||||||||||||||||||||||
| Granted (in dollars per share) | $ 20.18 | ||||||||||||||||||||||
| Vested (in dollars per share) | $ 20.18 | ||||||||||||||||||||||
| Unvested at the end of the period (in dollars per share) | $ 20.18 | $ 20.18 | |||||||||||||||||||||