Revenue Recognition Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Accounts receivable, net of allowance of $5,494 and $3,542, respectively	$ 101,813	$ 75,342
Contract with Customer, Liability, Revenue Recognized	456,855	445,547
Deferred revenue, current portion	$ 59,464	$ 53,447