Accumulated OCI - Schedule of Reclassifications Out of Accumulated OCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 20,395	$ 23,006	$ 63,294	$ 54,334
Income tax expense	$ (2,243)	$ (4,673)	6,795	$ (18,157)
Interest Rate Swap Agreements
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net of tax			6,570
Reclassifications Out of Accumulate OCI
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income tax expense			(2,253)
Net of tax			6,570
Reclassifications Out of Accumulate OCI | Interest Rate Swap Agreements
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense			$ 8,823