ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	$ 1,593,237	$ 1,513,887	$ 1,348,450	$ 1,341,551	$ 1,513,887	$ 1,341,551
Other comprehensive (loss) income before reclassifications					37,539
Amounts reclassified out of accumulated other comprehensive loss					5,358
Tax benefit (provision)					(9,587)
Other comprehensive (loss) income, net of tax	(539)	33,849	10,640	11,948	33,310	22,588
Balance ending of period	1,716,950	1,593,237	1,409,587	1,348,450	1,716,950	1,409,587
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period		(177,824)			(177,824)
Other comprehensive (loss) income before reclassifications					(7,326)
Amounts reclassified out of accumulated other comprehensive loss					0
Tax benefit (provision)					0
Other comprehensive (loss) income, net of tax					(7,326)
Balance ending of period	(185,150)				(185,150)
Unrealized (Loss) Gain on Available-For-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period		(150)			(150)
Other comprehensive (loss) income before reclassifications					(830)
Amounts reclassified out of accumulated other comprehensive loss					0
Tax benefit (provision)					174
Other comprehensive (loss) income, net of tax					(656)
Balance ending of period	(806)				(806)
Unrealized (Loss) Gain on Interest Rate Hedge
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period		(17,383)			(17,383)
Other comprehensive (loss) income before reclassifications					45,685
Amounts reclassified out of accumulated other comprehensive loss					5,358
Tax benefit (provision)					(9,761)
Other comprehensive (loss) income, net of tax					41,282
Balance ending of period	23,899				23,899
Unrealized Loss on Unfunded Pension Liability
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period		(655)			(655)
Other comprehensive (loss) income before reclassifications					10
Amounts reclassified out of accumulated other comprehensive loss					0
Tax benefit (provision)					0
Other comprehensive (loss) income, net of tax					10
Balance ending of period	(645)				(645)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(162,163)	(196,012)	(199,529)	(211,477)	(196,012)	(211,477)
Other comprehensive (loss) income, net of tax	(539)	33,849	10,640	11,948
Balance ending of period	$ (162,702)	$ (162,163)	$ (188,889)	$ (199,529)	$ (162,702)	$ (188,889)