STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Summary of Stock Option Activity

A summary of stock option activity follows:

	Stock Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value
Outstanding, December 31, 2019	98	$	9.20
Granted	—	$	—
Exercised	(8)	$	12.48
Forfeited	—	$	—
Outstanding, September 30, 2020	90	$	8.91	5.0	$	4,230
Exercisable, September 30, 2020	90	$	8.91	5.0	$	4,230

Summary of Restricted Stock, Restricted Stock Unit and Performance Stock Unit Activity

A summary of restricted stock, restricted stock unit and performance stock unit activity follows:

	Restricted Stock, Restricted Stock Units, and Performance Stock Units (1)	Weighted Average Grant Date Fair Value		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value
Outstanding, December 31, 2019	393	$	28.23
Granted	161	$	47.84
Class A Common Stock Vested	(126)	$	22.09
Forfeited	(6)	$	35.30
Outstanding, September 30, 2020	422	$	37.46	1.8	$	23,581
Unvested, September 30, 2020	711	$	37.61	1.6	$	39,738

(1)Market-based performance stock unit grants are included at the 100% attainment level. Attainment of the maximum performance targets and market achievements would result in the issuance of an additional 289 shares of Class A common stock currently included in unvested.

Summary of Changes in Balances of Each Component of Accumulated Other Comprehensive Loss

A summary of the changes in the balances of each component of accumulated other comprehensive loss, net of tax follows:

	Interest Rate Swaps
Balance, December 31, 2019	$	(6,041)
Other comprehensive loss before reclassifications	(11,223)
Amounts reclassified from accumulated other comprehensive loss	2,513
Income tax benefit related to items of other comprehensive loss	112
Net current-period other comprehensive loss	(8,598)
Balance, September 30, 2020	$	(14,639)

Summary of Reclassifications Out of Accumulated Other Comprehensive Loss

A summary of reclassifications out of accumulated other comprehensive loss, net of tax follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Details About Accumulated Other Comprehensive Loss Components	Amounts Reclassified Out of Accumulated Other Comprehensive Loss								Affected Line Item in the Consolidated Statements of Operations
Interest rate swaps	$	1,156	$	30	$	2,513	$	(86)	Interest expense
	1,156		30		2,513		(86)		Income before income taxes
	—		—		(112)		—		Provision (benefit) for income taxes
	$	1,156	$	30	$	2,625	$	(86)	Net income