Stock-Based Compensation (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
Income Statement Classifications	2021		2020		2021		2020
Cost of subscription, support and services	$	4,546	$	3,404	$	8,952	$	6,166
Research and development	25,792		30,987		56,919		52,583
Sales, marketing and services	28,649		27,843		56,991		48,229
General and administrative	22,944		23,128		45,931		36,707
Total	$	81,931	$	85,362	$	168,793	$	143,685

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:

	Six Months Ended
	June 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