Fair Value (Tables)

3 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Fair Value Assets and Liabilities Measured on Recurring Basis

The following tables present fair values for assets and liabilities measured at fair value on a recurring basis:


		As of March 31, 2026
		Level 1				Level 2				Level 3				Total
		(Dollars in thousands)
Assets:
Available for sale securities:
Corporate debt securities		$	—			$	10,613			$	—			$	10,613
Collateralized mortgage obligations			—				210,445				—				210,445
Mortgage-backed securities			—				135,076				—				135,076
Derivative financial instruments:
Interest rate lock commitments		$	—			$	195			$	—			$	195
Forward mortgage-backed securities trades			—				175				—				175
Loan customer counterparty			—				739				—				739
Financial institution counterparty			—				182				—				182
Liabilities:
Derivative financial instruments:
Interest rate lock commitments		$	—			$	7			$	—			$	7
Forward mortgage-backed securities trades			—				18				—				18
Loan customer counterparty			—				185				—				185
Financial institution counterparty			—				739				—				739


		As of December 31, 2025
		Level 1				Level 2				Level 3				Total
		(Dollars in thousands)
Assets:
Available for sale securities:
Corporate debt securities		$	—			$	10,453			$	—			$	10,453
Collateralized mortgage obligations			—				207,444				—				207,444
Mortgage-backed securities			—				120,300				—				120,300
Derivative financial instruments:
Interest rate lock commitments		$	—			$	192			$	—			$	192
Forward mortgage-backed securities trades			—				6				—				6
Loan customer counterparty			—				—				—				—
Financial institution counterparty			—				778				—				778
Liabilities:
Derivative financial instruments:
Interest rate lock commitments		$	—			$	—			$	—			$	—
Forward mortgage-backed securities trades			—				50				—				50
Loan customer counterparty			—				782				—				782
Financial institution counterparty			—				—				—				—

Summary of Carrying and Fair Value Information of Financial Instruments

The following tables present carrying and fair value information of financial instruments as of the dates indicated:


		As of March 31, 2026
		Carrying				Estimated Fair Value
		Amount				Level 1				Level 2				Level 3				Total
		(Dollars in thousands)
Assets
Cash and due from banks		$	1,547,967			$	1,547,967			$	—			$	—			$	1,547,967
Federal funds sold			209				209				—				—				209
Held to maturity securities			11,595,457				—				10,687,015				—				10,687,015
Loans held for sale			21,925				—				21,925				—				21,925
Loans held for investment, net of allowance			23,449,069				—				—				22,645,809				22,645,809
Loans held for investment - Warehouse Purchase Program			1,433,152				—				1,433,152				—				1,433,152
Other real estate owned			13,257				—				13,257				—				13,257
Liabilities
Deposits:
Noninterest-bearing		$	10,580,920			$	—			$	10,580,920			$	—			$	10,580,920
Interest-bearing			22,051,836				—				22,038,251				—				22,038,251
Other borrowings			2,200,000				—				2,200,000				—				2,200,000
Securities sold under repurchase agreements			176,099				—				176,099				—				176,099
Subordinated notes and junior subordinated debentures			76,186				—				76,186				—				76,186


		As of December 31, 2025
		Carrying				Estimated Fair Value
		Amount				Level 1				Level 2				Level 3				Total
		(Dollars in thousands)
Assets
Cash and due from banks		$	1,747,511			$	1,747,511			$	—			$	—			$	1,747,511
Federal funds sold			217				217				—				—				217
Held to maturity securities			10,275,228				—				9,433,365				—				9,433,365
Loans held for sale			14,155				—				14,155				—				14,155
Loans held for investment, net of allowance			20,152,673				—				—				19,342,602				19,342,602
Loans held for investment - Warehouse Purchase Program			1,304,798				—				1,304,798				—				1,304,798
Other real estate owned			13,296				—				13,296				—				13,296
Liabilities
Deposits:
Noninterest-bearing		$	9,467,911			$	—			$	9,467,911			$	—			$	9,467,911
Interest-bearing			19,014,573				—				19,001,946				—				19,001,946
Other borrowings			1,950,000				—				1,950,000				—				1,950,000
Securities sold under repurchase agreements			201,216				—				201,216				—				201,216