Revenue Recognition - Summary of Activity Impacting Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Contract Acquisition Costs, Balances	$ 35,152	$ 28,043
Additional deferred contract acquisition costs	2,806	2,052
Amortization of deferred contract acquisition costs	(3,004)	(2,166)
Contract Acquisition Costs, Balances	$ 34,954	$ 27,929