Revenues, Recognition and Allowances - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) transaction_type segment	Dec. 31, 2018 USD ($)
Revenue from Contract with Customer [Abstract]
Types of transactions | transaction_type	3
Operating segments | segment	1
Allowance for doubtful accounts	$ 30,500	$ 18,100
Allowance for doubtful accounts, current	2,208	$ 2,636
Allowance for doubtful accounts related to one customer	$ 1,700