Changes in Accumulated Other Comprehensive Income Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest rate contracts	$ (16,532)	$ (7,442)	$ 45
Provision for taxes	(42,789)	(34,743)	(1,112)
Net income	172,365	126,653	215,476
Reclassifications Out of Accumulated Other Comprehensive Income | Cash Flow Hedging Derivative Activity
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Provision for taxes	0
Net income	0
Reclassifications Out of Accumulated Other Comprehensive Income | Cash Flow Hedging Derivative Activity | Interest rate swaps
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest rate contracts	$ 0
Reclassifications Out of Accumulated Other Comprehensive Income | Cash Flow Hedging Derivative Activity
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Provision for taxes		(1,094)	(1,484)
Net income		8,366	7,975
Reclassifications Out of Accumulated Other Comprehensive Income | Cash Flow Hedging Derivative Activity | Interest rate swaps
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest rate contracts		$ 9,460	$ 9,459