Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Total Stock-based Compensation Recognized by Income Statement Classification

The detail of the total stock-based compensation recognized by income statement classification is as follows (in thousands):

	Three Months Ended March 31,
Income Statement Classifications	2021		2020
Cost of subscription, support and services	$	4,406	$	2,762
Research and development	31,127		21,596
Sales, marketing and services	28,342		20,386
General and administrative	22,987		13,579
Total	$	86,862	$	58,323

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions

In connection with the acquisition of Wrike, the Company assumed 526,113 outstanding stock options which expire ten years from the date of grant and which were valued using the Black-Scholes option-pricing model. The fair value of the assumed stock options were estimated using the following assumptions:

	Three Months Ended
	March 31, 2021
Expected volatility factor	0.51 - 0.75
Risk free interest rate	0.04% - 0.14%
Expected dividend yield	1.11%
Expected life (in years)	0.08 - 1.00