Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		$ 803,470	$ 746,961
Current period other comprehensive (loss) income:
Total current period other comprehensive (loss) income		2,659	2,780
Balance		803,302	751,233
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(8,759)	(7,210)
Current period other comprehensive (loss) income:
Other comprehensive (loss) income before reclassifications		(2,304)	968
Effect of taxes	[1]	363	(104)
Total current period other comprehensive (loss) income		(1,941)	864
Balance		(10,700)	(6,346)
Gain on Sale of Interest Rate Hedge Agreement
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	[2]	569	1,096
Current period other comprehensive (loss) income:
Amounts reclassified from accumulated other comprehensive (loss) income	[2],[3]	(180)	(180)
Effect of taxes	[1],[2]	48	49
Total current period other comprehensive (loss) income	[2]	(132)	(131)
Balance	[2]	437	965
Change in Fair Value of Interest Rate Hedge Agreements
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	[4]	(2,845)	(7,992)
Current period other comprehensive (loss) income:
Other comprehensive (loss) income before reclassifications	[4]	5,509	1,882
Amounts reclassified from accumulated other comprehensive (loss) income	[3],[4]	902	907
Effect of taxes	[1],[4]	(1,679)	(742)
Total current period other comprehensive (loss) income	[4]	4,732	2,047
Balance	[4]	1,887	(5,945)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Balance		(11,035)	(14,106)
Current period other comprehensive (loss) income:
Other comprehensive (loss) income before reclassifications		3,205	2,850
Amounts reclassified from accumulated other comprehensive (loss) income	[3]	722	727
Effect of taxes	[1]	(1,268)	(797)
Total current period other comprehensive (loss) income		2,659	2,780
Balance		$ (8,376)	$ (11,326)

[1] The Company’s effective tax rate for the three months ended March 31, 2022 and 2021 was 27.5% and 26.7%, respectively

[2] Represents the unamortized value of an interest rate hedge agreement, designated as a cash flow hedge, which was sold on December 1, 2016. The fair value of the interest rate hedge agreement, at the date of the sale, was recorded in other comprehensive income, net of tax, and is being reclassified to interest expense when earnings are impacted by the hedged items and as interest payments are made on the Credit Facility from January 31, 2018 to January 31, 2023 (see Note 9—Derivative Instruments and Hedging Activities).

[3] The Company expects to reclassify $0.6 million net gains related to the Gain on Sale of Interest Rate Hedge Agreement and $0.5 million net losses related to the Change in Fair Value of Interest Rate Hedge Agreement from accumulated other comprehensive loss into earnings during the next 12 months

[4] Represents the change in fair value of interest rate hedge agreements designated as a cash flow hedges. The fair value of the interest rate hedge agreements was recorded in other comprehensive income, net of tax, and will be reclassified to earnings when earnings are impacted by the hedged items, as interest payments are made on the Credit Facility from August 31, 2018 to February 28, 2025 (see Note 9—Derivative Instruments and Hedging Activities).