STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Restricted Stock, Restricted Stock Units, and Performance-Based Stock Units
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	$ 1,058	$ 550
Restricted Stock and Restricted Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense, weighted average period	1 year 8 months 4 days
Total fair value of other stock awards vested	$ 3,408
Unrecognized stock-based compensation expense	$ 4,704
Performance-Based Stock Units
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense, weighted average period	2 years 2 months
Stock Options
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	$ 171	146
Aggregate intrinsic value of options exercised	53
Unrecognized stock-based compensation expense	$ 947
Unrecognized stock-based compensation expense, weighted average period	1 year
Market-based Performance Stock Options
Limited Partners' Capital Account [Line Items]
Weighted average fair value (in dollars per share)	$ 12.51
Risk free interest rate	1.45%
Expected volatility	32.80%
Dividend yield	0.00%
Amended and Restated 1997 Employee Stock Purchase Plan
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	$ 28	$ 26
Non-Employee Director | Restricted Stock Awards
Limited Partners' Capital Account [Line Items]
Options vesting period	3 years
Minimum | 2016 Plan
Limited Partners' Capital Account [Line Items]
Options vesting period	1 year
Maximum | Performance-Based Stock Units
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	$ 7,700
Maximum | 2016 Plan
Limited Partners' Capital Account [Line Items]
Options granted period	10 years
Options vesting period	4 years
Class A Common Stock | 2016 Plan
Limited Partners' Capital Account [Line Items]
Common stock, authorized shares (in shares)			2,250,000
Number of shares available for future grant (in shares)	1,927,000
Class A Common Stock | 2006 Incentive Plan
Limited Partners' Capital Account [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			2,723,000