ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) - Changes in Accumulated Other Comprehensive Income/(Loss) by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated other comprehensive income activity
Balance at beginning of period	$ 2,068,204	$ 1,984,600	$ 1,850,785
Total other comprehensive income (loss)	32,920	(26,516)	(34,599)
Balance at end of period	2,321,298	2,068,204	1,984,600
Accumulated Other Comprehensive (Loss)Income
Accumulated other comprehensive income activity
Balance at beginning of period	(341,366)	(316,041)	(281,709)
Other comprehensive (loss) income before reclassifications	31,861	(31,757)	(36,482)
Amounts reclassified from accumulated other comprehensive income (loss)	771	6,432	2,150
Total other comprehensive income (loss)	32,632	(25,325)	(34,332)
Balance at end of period	(308,734)	(341,366)	(316,041)
Foreign Currency
Accumulated other comprehensive income activity
Balance at beginning of period	(328,740)	(249,500)	(178,025)
Other comprehensive (loss) income before reclassifications	48,658	(79,240)	(71,475)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Total other comprehensive income (loss)	48,658	(79,240)	(71,475)
Balance at end of period	(280,082)	(328,740)	(249,500)
Defined Benefit Pension Plans
Accumulated other comprehensive income activity
Balance at beginning of period	(5,951)	(66,486)	(102,322)
Other comprehensive (loss) income before reclassifications	(6,711)	54,149	26,409
Amounts reclassified from accumulated other comprehensive income (loss)	771	6,386	9,427
Total other comprehensive income (loss)	(5,940)	60,535	35,836
Balance at end of period	(11,891)	(5,951)	(66,486)
Derivatives
Accumulated other comprehensive income activity
Balance at beginning of period	(6,675)	(55)	(1,362)
Other comprehensive (loss) income before reclassifications	(10,086)	(6,666)	8,584
Amounts reclassified from accumulated other comprehensive income (loss)	0	46	(7,277)
Total other comprehensive income (loss)	(10,086)	(6,620)	1,307
Balance at end of period	$ (16,761)	$ (6,675)	$ (55)