CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests
Balances at beginning of period at Dec. 31, 2020	$ 1,012,406	$ 27,080	$ 274,857	$ 688,819	$ 17,022	$ (2,666)	$ 7,294
Increase (Decrease) in Stockholders' Equity
Net income attributable to Stewart	54,236			54,236
Dividends on Common Stock	(9,082)			(9,082)
Stock-based compensation	3,174	113	3,061
Stock repurchases	(1,935)	(37)	(1,898)
Stock option and employee stock purchase plan exercises	61	2	59
Purchase of remaining interest in consolidated subsidiary	(2,570)		(2,259)				(311)
Change in net unrealized gains and losses on investments, net of taxes	(9,156)				(9,156)
Reclassification adjustment for realized gains and losses on investments, net of taxes	(145)				(145)
Foreign currency translation adjustments, net of taxes	1,867				1,867
Net income attributable to noncontrolling interests	2,886						2,886
Distributions to noncontrolling interests	(3,844)						(3,844)
Balances at end of period at Mar. 31, 2021	1,047,898	27,158	273,820	733,973	9,588	(2,666)	6,025
Balances at beginning of period at Dec. 31, 2021	1,294,735	27,246	282,376	974,800	253	(2,666)	12,726
Increase (Decrease) in Stockholders' Equity
Net income attributable to Stewart	57,897			57,897
Dividends on Common Stock	(10,241)			(10,241)
Stock-based compensation	2,239	108	2,131
Stock repurchases	(2,462)	(36)	(2,426)
Stock option and employee stock purchase plan exercises	2,492	49	2,443
Change in net unrealized gains and losses on investments, net of taxes	(19,898)				(19,898)
Reclassification adjustment for realized gains and losses on investments, net of taxes	(185)				(185)
Foreign currency translation adjustments, net of taxes	620				620
Net income attributable to noncontrolling interests	4,015						4,015
Distributions to noncontrolling interests	(4,568)						(4,568)
Net effect of other changes in ownership	144						144
Balances at end of period at Mar. 31, 2022	$ 1,324,788	$ 27,367	$ 284,524	$ 1,022,456	$ (19,210)	$ (2,666)	$ 12,317