Revenue - Assets Recognized from Costs to Obtain Contracts with Customers (Details)	3 Months Ended
	Mar. 31, 2020 USD ($)
Change in Capitalized Contract Costs [Roll Forward]
Balances at December 31, 2019	$ 43,035,000
Additional deferred commissions	7,899,000
Amortization of deferred commissions	(8,331,000)
Effects of foreign currency translation	(747,000)
Balances at March 31, 2020	41,856,000
Deferred commissions	17,900,000
Impairments of assets related to deferred contract costs	$ 0