CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenues
Total revenues	$ 183,155	$ 166,931
Cost of revenues
Total cost of revenues	44,005	40,924
Gross profit	139,150	126,007
Operating expenses
Sales and marketing	67,421	63,063
Research and development	30,560	25,725
General and administrative	33,241	28,345
Restructuring costs	1,693	5,299
Total operating expenses	132,915	122,432
Income from operations	6,235	3,575
Other income (expense)
Interest income	6,058	8,892
Interest expense	(2,494)	(2,522)
Other income, net	3,564	6,370
Income before income taxes	9,799	9,945
Provision for income taxes	5,908	4,671
Net income	3,891	5,274
Net income attributable to redeemable non-controlling interest	394	397
Adjustment attributable to redeemable non-controlling interest	(4,629)	(1,178)
Net income attributable to BlackLine, Inc.	$ 8,126	$ 6,055
Basic net income per share attributable to BlackLine, Inc. (in usd per share)	$ 0.14	$ 0.10
Shares used to calculate basic net income per share (in shares)	59,439	62,822
Diluted net income per share attributable to BlackLine, Inc. (in usd per share)	$ 0.13	$ 0.10
Shares used to calculate diluted net income per share (in shares)	69,835	64,839
Subscription and support
Revenues
Total revenues	$ 173,714	$ 158,462
Cost of revenues
Total cost of revenues	36,436	34,130
Professional services
Revenues
Total revenues	9,441	8,469
Cost of revenues
Total cost of revenues	$ 7,569	$ 6,794