Revenues - Contract with Customer, Asset and Liability Rollforward (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Revenue from Contract with Customer [Abstract]
Beginning balance, January 1, 2019	$ 102,130
Revenues recognized from beginning contract liability	(57,371)
Increases due to amounts collected or due	328,557
Revenues recognized from current period increases	(282,322)
Other	(2,779)
Ending balance, December 31, 2019	$ 88,215