Deferred Solution and Other Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred solution costs	$ 10,658	$ 7,142
Deferred commissions	4,951	3,359
Deferred solution and other costs, current portion	15,609	10,501
Deferred solution costs	12,464	6,625
Deferred commissions	16,756	10,136
Deferred solution and other costs, net of current portion	$ 29,220	$ 16,761