Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue:
Total revenue	$ 108,831	$ 76,020
Cost of revenue:
Total cost of revenue	13,047	8,000
Gross profit	95,784	68,020
Operating expenses:
Research and development	26,181	14,072
Sales and marketing	65,165	38,450
General and administrative	24,543	19,900
Total operating expenses	115,889	72,422
Loss from operations	(20,105)	(4,402)
Interest expense	(9,303)	(2,986)
Other income (expense), net	(2,462)	2,829
Loss before benefit of income taxes	(31,870)	(4,559)
Benefit of income taxes	(16,397)	(10,473)
Net income (loss)	$ (15,473)	$ 5,914
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)	$ (0.24)	$ 0.10
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)	$ (0.24)	$ 0.09
Weighted-average shares used to compute net income (loss) per share attributable to common stockholders, basic	65,569	61,926
Weighted-average shares used to compute net income (loss) per share attributable to common stockholders, diluted	65,569	67,478
Other comprehensive income (loss), net of tax:
Net unrealized holding income on investments, net of tax	$ 1,243	$ 702
Foreign currency translation adjustments	998	(1,011)
Other comprehensive income (loss), net of tax	2,241	(309)
Total comprehensive income (loss)	(13,232)	5,605
Subscription-based software license
Revenue:
Total revenue	50,744	34,807
Cost of revenue:
Total cost of revenue	1,981	597
PCS and services
Revenue:
Total revenue	58,087	41,213
Cost of revenue:
Total cost of revenue	$ 11,066	$ 7,403