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STOCKHOLDERS' EQUITY - Narrative (Detail) - USD ($)	3 Months Ended
STOCKHOLDERS' EQUITY - Narrative (Detail) - USD ($)	Mar. 31, 2022	Mar. 31, 2021
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period	2 years 3 months 18 days
Fair value of stock awards vested	$ 4,545,000
Stock Options
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	16,000	$ 0
Unrecognized stock-based compensation expense, stock options	155,000
Aggregate intrinsic value of options exercised	311,000
Restricted Stock, Restricted Stock Units And Performance Stock Units
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	2,151,000	2,884,000
Restricted Stock
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	$ 71,000
Restricted Stock \| Non Employee Director
Limited Partners' Capital Account [Line Items]
Options, vesting period (in years)	3 years
Restricted Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	$ 6,015,000
Performance Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	$ 9,779,000
Weighted average \| Restricted Stock
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period	1 year 8 months 12 days
Weighted average \| Restricted Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period	2 years 2 months 12 days
Weighted average \| Performance Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period	2 years
2016 Plan
Limited Partners' Capital Account [Line Items]
Options granted, term (in years)	10 years
2016 Plan \| Minimum
Limited Partners' Capital Account [Line Items]
Options, vesting period (in years)	1 year
2016 Plan \| Maximum
Limited Partners' Capital Account [Line Items]
Options, vesting period (in years)	4 years
Amended and Restated 1997 Employee Stock Purchase Plan
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	$ 73,000	$ 57,000
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)	811,000
Class A Common Stock \| 2006 Incentive Plan
Limited Partners' Capital Account [Line Items]
Common stock, additional authorized shares (in shares)	2,723,000