CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Revenues	$ 829,787	$ 590,676	$ 2,313,178	$ 1,543,206
Investment income	4,053	5,027	13,127	14,530
Net realized and unrealized gains (losses)	2,887	(7)	17,816	(6,035)
Revenues	836,727	595,696	2,344,121	1,551,701
Expenses
Amounts retained by agencies	329,906	231,051	935,861	659,138
Employee costs	197,587	155,638	555,451	428,817
Other operating expenses	152,587	98,531	415,864	245,003
Title losses and related claims	30,345	28,427	92,687	68,600
Depreciation and amortization	9,144	5,144	22,394	13,436
Interest	712	562	1,960	2,075
Total expenses	720,281	519,353	2,024,217	1,417,069
Income before taxes and noncontrolling interests	116,446	76,343	319,904	134,632
Income tax expense	(23,051)	(16,058)	(70,547)	(29,293)
Net income	93,395	60,285	249,357	105,339
Less net income attributable to noncontrolling interests	4,732	4,376	11,639	10,107
Net income attributable to Stewart	88,663	55,909	237,718	95,232
Net income	93,395	60,285	249,357	105,339
Other comprehensive (loss) income, net of taxes:
Foreign currency translation adjustments	(4,243)	3,844	(997)	(3,404)
Change in net unrealized gains and losses on investments	(2,183)	920	(10,330)	15,055
Reclassification adjustment for realized gains and losses on investments	(355)	(175)	(918)	(276)
Other comprehensive (loss) income, net of taxes:	(6,781)	4,589	(12,245)	11,375
Comprehensive income	86,614	64,874	237,112	116,714
Less net income attributable to noncontrolling interests	4,732	4,376	11,639	10,107
Comprehensive income attributable to Stewart	$ 81,882	$ 60,498	$ 225,473	$ 106,607
Basic average shares outstanding (in shares)	26,873	25,148	26,803	24,151
Basic earnings per share attributable to Stewart (in usd per share)	$ 3.30	$ 2.22	$ 8.87	$ 3.94
Diluted average shares outstanding (in shares)	27,238	25,297	27,090	24,256
Diluted earnings per share attributable to Stewart (in usd per share)	$ 3.26	$ 2.21	$ 8.78	$ 3.93
Direct operations
Revenues
Revenues	$ 366,091	$ 280,114	$ 999,098	$ 696,611
Agency operations
Revenues
Revenues	401,762	282,605	1,138,023	802,022
Ancillary services
Revenues
Revenues	$ 61,934	$ 27,957	$ 176,057	$ 44,573