UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue
Total revenue	$ 256,268	$ 225,951	$ 895,469	$ 718,917
Cost of revenue
Total cost of revenue	84,222	77,799	251,200	234,018
Gross profit	172,046	148,152	644,269	484,899
Operating expenses
Selling and marketing	152,479	132,053	457,641	395,684
Research and development	64,728	60,024	191,565	177,620
General and administrative	20,176	17,907	57,607	49,192
Total operating expenses	237,383	209,984	706,813	622,496
(Loss) from operations	(65,337)	(61,832)	(62,544)	(137,597)
Foreign currency transaction gain (loss)	518	4,236	(4,983)	2,545
Interest income	166	243	555	1,092
Interest expense	(1,908)	(5,956)	(5,747)	(13,791)
(Loss) income on capped call transactions	(14,735)	18,989	(7,543)	19,816
Other income, net	2	0	108	1,374
(Loss) before (benefit from) income taxes	(81,294)	(44,320)	(80,154)	(126,561)
(Benefit from) income taxes	(24,826)	(25,053)	(54,360)	(61,182)
Net (loss)	$ (56,468)	$ (19,267)	$ (25,794)	$ (65,379)
(Loss) per share
Basic (in dollars per share)	$ (0.69)	$ (0.24)	$ (0.32)	$ (0.82)
Diluted (in dollars per share)	$ (0.69)	$ (0.24)	$ (0.32)	$ (0.82)
Weighted-average number of common shares outstanding
Basic (in shares)	81,526	80,537	81,284	80,191
Diluted (in shares)	81,526	80,537	81,284	80,191
Pega Cloud
Revenue
Total revenue	$ 78,369	$ 54,776	$ 219,520	$ 147,080
Cost of revenue
Total cost of revenue	25,524	19,717	72,132	56,238
Maintenance
Revenue
Total revenue	83,188	74,670	237,531	220,587
Cost of revenue
Total cost of revenue	5,293	5,478	16,074	16,645
Software license
Revenue
Total revenue	38,295	39,784	272,148	187,023
Cost of revenue
Total cost of revenue	656	691	1,962	2,354
Consulting
Revenue
Total revenue	56,416	56,721	166,270	164,227
Cost of revenue
Total cost of revenue	$ 52,749	$ 51,913	$ 161,032	$ 158,781