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, 2019	$ 753,759	$ 24,062	$ 164,217	$ 564,392	$ (2,699)	$ (2,666)	$ 6,453
Increase (Decrease) in Stockholders' Equity
Net income attributable to Stewart	5,177			5,177
Dividends on Common Stock	(7,124)			(7,124)
Stock-based compensation	887	(20)	907
Stock repurchases	(393)	(10)	(383)
Change in net unrealized gains and losses on investments, net of taxes	(2,580)				(2,580)
Reclassification adjustment for realized gains and losses on investments, net of taxes	(80)				(80)
Foreign currency translation adjustments, net of taxes	(11,442)				(11,442)
Net income attributable to noncontrolling interests	2,197						2,197
Distributions to noncontrolling interests	(3,326)						(3,326)
Balances at end of period at Mar. 31, 2020	737,075	24,032	164,741	562,445	(16,801)	(2,666)	5,324
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 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