Equity - Changes in AOCI/L by Component (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 527,638	$ 891,594	$ 1,090,428	$ 991,219	$ 890,275	$ 938,593	$ 1,090,428	$ 938,593
Change in AOCL before reclassifications to income	(6,488)			6,465			(1,172)	(73,088)
Reclassifications from AOCL/I to income	5,629			5,497			16,563	20,813
Other comprehensive (loss) income, net of tax	(859)	10,200	6,050	11,962	26,797	(91,034)	15,391	(52,275)
Ending balance	334,507	527,638	891,594	1,037,503	991,219	890,275	334,507	1,037,503
Derivative reclassifications	(9,938)			(7,344)			(9,924)	(40,173)
Interest (income) expense, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Derivative reclassifications	(7,380)			(7,165)			(21,695)	(17,679)
Interest rate swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Loss to be reclassified within twelve months							24,900
Interest rate swaps | Interest (income) expense, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Derivative reclassifications	7,400			7,200			21,700	17,700
Interest rate swaps | Other Expense
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Loss on release of interest rate swap recognized in earnings					10,300
Interest Rate Swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(67,377)		(78,104)	(88,996)		(47,164)	(78,104)	(47,164)
Change in AOCL before reclassifications to income	0			(1,033)			0	(58,022)
Reclassifications from AOCL/I to income	5,529			5,412			16,256	20,569
Other comprehensive (loss) income, net of tax	5,529			4,379			16,256	(37,453)
Ending balance	(61,848)	(67,377)		(84,617)	(88,996)		(61,848)	(84,617)
Defined Benefit Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(9,102)		(9,309)	(8,425)		(8,584)	(9,309)	(8,584)
Change in AOCL before reclassifications to income	0			0			0	0
Reclassifications from AOCL/I to income	100			85			307	244
Other comprehensive (loss) income, net of tax	100			85			307	244
Ending balance	(9,002)	(9,102)		(8,340)	(8,425)		(9,002)	(8,340)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6,499)		(11,815)	(44,754)		(22,190)	(11,815)	(22,190)
Change in AOCL before reclassifications to income	(6,488)			7,498			(1,172)	(15,066)
Reclassifications from AOCL/I to income	0			0			0	0
Other comprehensive (loss) income, net of tax	(6,488)			7,498			(1,172)	(15,066)
Ending balance	(12,987)	(6,499)		(37,256)	(44,754)		(12,987)	(37,256)
Accumulated Other Comprehensive Loss, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(82,978)	(93,178)	(99,228)	(142,175)	(168,972)	(77,938)	(99,228)	(77,938)
Other comprehensive (loss) income, net of tax	(859)	10,200	6,050	11,962	26,797	(91,034)
Ending balance	$ (83,837)	$ (82,978)	$ (93,178)	$ (130,213)	$ (142,175)	$ (168,972)	$ (83,837)	$ (130,213)