CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Hilltop	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Deferred Compensation Employee Stock Trust, Net	Employee Stock Trust	Noncontrolling Interest	Total
Balance at Dec. 31, 2021	$ 2,522,668	$ 790	$ 1,274,446	$ (10,219)	$ 1,257,014	$ 752	$ (115)	$ 26,535	$ 2,549,203
Balance (in shares) at Dec. 31, 2021		78,965					6
Increase (Decrease) in Stockholders' Equity
Net income	113,134				113,134			6,160	119,294
Other comprehensive income (loss)	(123,312)			(123,312)					(123,312)
Stock-based compensation expense	15,027		15,027						15,027
Common stock issued to board members	599		599						599
Common stock issued to board members (in shares)		22
Issuance of common stock related to share-based awards, net	(5,097)	$ 5	(5,102)						(5,097)
Issuance of common stock related to share-based awards, net (in shares)		567
Repurchase and retirement of common stock	(442,336)	$ (148)	(238,639)		(203,549)				(442,336)
Repurchases of common stock (in shares)		(14,869)
Dividends on common stock	(42,963)				(42,963)				(42,963)
Deferred compensation plan	(796)					(271)	$ (525)		(796)
Deferred compensation plan (in shares)							17
Net cash contributed to noncontrolling interest								(6,090)	(6,090)
Balance at Dec. 31, 2022	2,036,924	$ 647	1,046,331	(133,531)	1,123,636	481	$ (640)	26,605	2,063,529
Balance (in shares) at Dec. 31, 2022		64,685					23
Increase (Decrease) in Stockholders' Equity
Net income	109,646				109,646			8,333	117,979
Other comprehensive income (loss)	12,026			12,026					12,026
Stock-based compensation expense	14,967		14,967						14,967
Common stock issued to board members	548		548						548
Common stock issued to board members (in shares)		17
Issuance of common stock related to share-based awards, net	(4,535)	$ 7	(4,542)						(4,535)
Issuance of common stock related to share-based awards, net (in shares)		616
Repurchase and retirement of common stock	(5,100)	$ (2)	(2,642)		(2,456)				(5,100)
Repurchases of common stock (in shares)		(165)
Dividends on common stock	(41,604)				(41,604)				(41,604)
Deferred compensation plan	95					(253)	$ 348		95
Deferred compensation plan (in shares)							(13)
Net cash contributed to noncontrolling interest								(7,576)	(7,576)
Balance at Dec. 31, 2023	2,122,967	$ 652	1,054,662	(121,505)	1,189,222	228	$ (292)	27,362	2,150,329
Balance (in shares) at Dec. 31, 2023		65,153					10
Increase (Decrease) in Stockholders' Equity
Net income	113,213				113,213			9,997	123,210
Other comprehensive income (loss)	10,008			10,008					10,008
Stock-based compensation expense	10,192		10,192						10,192
Common stock issued to board members	483		483						483
Common stock issued to board members (in shares)		16
Issuance of common stock related to share-based awards, net	(2,841)	$ 4	(2,845)						(2,841)
Issuance of common stock related to share-based awards, net (in shares)		439
Repurchase and retirement of common stock	(19,864)	$ (6)	(10,273)		(9,585)				(19,864)
Repurchases of common stock (in shares)		(640)
Dividends on common stock	(44,257)				(44,257)				(44,257)
Deferred compensation plan	64					$ (228)	$ 292		64
Deferred compensation plan (in shares)							(10)
Net cash contributed to noncontrolling interest								(9,012)	(9,012)
Balance at Dec. 31, 2024	$ 2,189,965	$ 650	$ 1,052,219	$ (111,497)	$ 1,248,593			$ 28,347	$ 2,218,312
Balance (in shares) at Dec. 31, 2024		64,968