Fair Value Measurements (Changes in Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Reclassification of derivative (gains) losses to earnings—net of tax		$ (1,878)	$ 2,490	$ (3,404)	$ 3,828
Change in fair value of derivatives—net of tax		2,282	950	5,694	(7,514)
Net change in cash flow derivative hedges—net of tax	[1]	$ 404	$ 3,440	$ 2,290	$ (3,686)

[1] Net of income tax (provision) benefit of $(136) and $1,162 for the three months ended June 30, 2021 and 2020 respectively.  Net of income tax (provision) of $(773) and $(1,255) for the six months ended June 30, 2021 and 2020 respectively.