Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ (39,003)	$ (25,376)
Reclassification adjustment for amounts recognized in net income		(930)	(1,809)	$ 7,564
Cumulative Effect New Accounting Principle In Period Of Adoption	$ 1,000	4,919
Adjustments To Equity For Partial Disposition of Ownership Interest In Unconsolidated Joint Venture		0
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification adjustment for amounts recognized in net income		(930)	(1,809)	7,564
Amount of gain/loss on interest rate contract reclassfied from AOCI		628	(1,133)	2,879
Amount of gain/loss on interest rate contract reclassfied from AOCI for unconsolidated joint ventures		(355)	188	2,406
Amount of gain/loss on cross-currency interest rate contract reclassified from AOCI for Unconsolidated Joint Ventures		(1,203)	(864)	2,279
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(18,953)	(16,128)	384	$ (23,147)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		(20,050)	(9,248)	(7,303)	(12,769)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(39,003)	(25,376)	(6,919)	(35,916)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(12,835)	(16,513)	23,615
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(9,806)	(26)	41
OCI, before Reclassifications, Net of Tax, Attributable to Parent		(22,641)	(16,539)	23,656
Reclassification adjustment for amounts recognized in net income		(649)	(1,286)	5,364
Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease)		(12,835)	(16,513)	23,615
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent		(10,455)	(1,312)	5,405
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent		(23,290)	(17,825)	29,020
OtherComprehensiveIncomeLossAdjustmentForeignCurrencyAttributableToParent		271	1	(84)
Other comprehensive income (loss), adjustments, attributable to parent		(347)	46	61
Other comprehensive income (loss), total adjustments attributable to parent		(76)	47	(23)
Cumulative Effect New Accounting Principle In Period Of Adoption			(679)
Adjustments To Equity For Partial Disposition of Ownership Interest In Unconsolidated Joint Venture		9,739
Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(8,176)	(6,569)	159	(9,613)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		4,197	8,363	9,220	7,065
Accumulated Other Comprehensive Income (Loss), Net of Tax		(3,979)	1,794	9,379	$ (2,548)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(1,336)	(6,727)	9,688
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(4,232)	(12)	16
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Noncontrolling Interest		(5,568)	(6,739)	9,704
Reclassification adjustment for amounts recognized in net income		(281)	(523)	2,200
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest		(1,336)	(6,727)	9,688
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Noncontrolling Interest		(4,513)	(535)	2,216
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest		(5,849)	(7,262)	11,904
Other Comprehensive Income Loss Adjustment Foreign Currency Attributable To Noncontrolling Interest		(271)	(1)	84
Other comprehensive income (loss), adjustments, attributable to noncontrolling interests		347	(46)	(61)
Other comprehensive income (loss), total adjustments attributable to noncontrolling interests		$ 76	(47)	$ 23
Cumulative Effect New Accounting Principle In Period Of Adoption			$ (276)