Revenue Recognition Revenue Contract Assets and Liabilities Rollforward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Revenue Recognition and Deferred Revenue [Abstract]
Beginning balance, January 1, 2020	$ 88,215
Revenues recognized from beginning contract liability	(82,438)
Increases due to amounts collected or due	252,212
Revenues recognized from current period increases	(145,016)
Other	(5,054)
Ending balance, September 30, 2020	$ 107,919