Accumulated Other Comprehensive Loss - Summary of Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 644,729
Other Comprehensive Income (Loss), Net of Tax	(37,437)	$ 109
Ending balance	560,021
ASU 2016-13 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit and Translation adjustment related to adoption of ASU	(3,185)
Interest Rate Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	1,634
Losses (gains) arising during period	(35,947)
Amounts reclassified from accumulated other comprehensive loss	(452)
Net other comprehensive income	(36,399)
Ending balance	(34,765)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(23,916)	(21,814)
Losses (gains) arising during period	(1,107)
Amounts reclassified from accumulated other comprehensive loss	17	20
Income tax benefit		(6)
Net other comprehensive income	(1,090)	26
Ending balance	(25,006)	(24,495)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | ASU 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit and Translation adjustment related to adoption of ASU		(2,707)
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(5,877)	(6,210)
Amounts reclassified from accumulated other comprehensive loss	52	83
Net other comprehensive income	52	83
Ending balance	(3,667)	(6,127)
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member] | ASU 2016-13 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit and Translation adjustment related to adoption of ASU	2,158
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(28,159)	(28,024)
Losses (gains) arising during period	(37,054)
Amounts reclassified from accumulated other comprehensive loss	(383)	103
Income tax benefit		(6)
Net other comprehensive income	(37,437)	109
Other Comprehensive Income (Loss), Net of Tax	(37,437)	109
Ending balance	(63,438)	(30,622)
AOCI Attributable to Parent [Member] | ASU 2016-13 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit and Translation adjustment related to adoption of ASU	$ 2,158
AOCI Attributable to Parent [Member] | ASU 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit and Translation adjustment related to adoption of ASU		$ (2,707)