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STOCKHOLDERS' EQUITY - Narrative (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Limited Partners' Capital Account [Line Items]
Expiration period			10 years
Unrecognized stock-based compensation, weighted average period			3 years 4 months 24 days
Fair value of stock awards vested	$ 932		$ 4,097
Stock Options
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	151	$ 125	302	$ 248
Unrecognized stock-based compensation expense, stock options	1,806		1,806
Aggregate intrinsic value of options exercised	0		0
Restricted Stock Awards, Restricted Stock Units And Performance Stock Units
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	2,349	2,132	$ 4,225	3,894
Restricted Stock | Non Employee Director
Limited Partners' Capital Account [Line Items]
Award vesting period			3 years
Restricted Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	8,193		$ 8,193
Restricted Stock Unit | Non Employee Director
Limited Partners' Capital Account [Line Items]
Award service period			3 years
Performance Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation expense	7,413		$ 7,413
Market-based Performance Stock Units
Limited Partners' Capital Account [Line Items]
Weighted average fair value of market-based performance (in dollars per share)			$ 105.35
Risk-free interest rate			4.31%
Expected volatility			25.30%
Minimum
Limited Partners' Capital Account [Line Items]
Award vesting period			1 year
Maximum
Limited Partners' Capital Account [Line Items]
Award vesting period			5 years
Weighted average | Restricted Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period			2 years 3 months 18 days
Weighted average | Performance Stock Unit
Limited Partners' Capital Account [Line Items]
Unrecognized stock-based compensation, weighted average period			2 years
Amended and Restated 1997 Employee Stock Purchase Plan
Limited Partners' Capital Account [Line Items]
Stock-based compensation expense	$ 174	$ 109	$ 283	$ 199
Class A Common Stock
Limited Partners' Capital Account [Line Items]
Common stock, authorized shares (in shares)	4,000		4,000
Class A Common Stock | Amended 2016 Plan
Limited Partners' Capital Account [Line Items]
Common stock, authorized shares (in shares)	1,750		1,750
Class A Common Stock | 2016 Plan
Limited Partners' Capital Account [Line Items]
Common stock, authorized shares (in shares)	2,250		2,250
Number of shares available for future grant (in shares)	2,197		2,197
Class A Common Stock | 2006 Incentive Plan
Limited Partners' Capital Account [Line Items]
Common stock, additional authorized shares (in shares)			2,723

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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