Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 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 September 30,				Nine Months Ended September 30,
Income Statement Classifications	2021		2020		2021		2020
Cost of subscription, support and services	$	4,948	$	3,542	$	13,900	$	9,708
Research and development	30,222		28,803		87,141		81,386
Sales, marketing and services	24,175		28,411		81,166		76,640
General and administrative	21,463		24,413		67,394		61,120
Total	$	80,808	$	85,169	$	249,601	$	228,854

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:

	Nine Months Ended
	September 30, 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