Fair Values of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The tables below present the balances of assets and liabilities measured at fair value on a recurring basis at December 31:

	2025
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities—Residential	$	—	$	2,496	$	—	$	2,496
Mortgage-Backed Securities—Commercial	—		661,689		—		661,689
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities—Residential	—		295,523		—		295,523
Other Government-Sponsored Enterprises	—		984		—		984
Obligations of States and Political Subdivisions	—		6,971		—		6,971
Corporate Securities	—		46,531		—		46,531
Total Securities Available for Sale	—		1,014,194		—		1,014,194
Loans Held for Sale	—		46,071		—		46,071
Other Assets (a)	—		9,573		—		9,573
Total Assets	$	—	$	1,069,838	$	—	$	1,069,838
Other Liabilities (a)	$	—	$	10,657	$	—	$	10,657
Total Liabilities	$	—	$	10,657	$	—	$	10,657

(a)Hedging and non-hedging interest rate derivatives

	2024
	Level 1		Level 2		Level 3		Total
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities—Residential	$	—	$	2,898	$	—	$	2,898
Mortgage-Backed Securities—Commercial	—		724,175		—		724,175
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities—Residential	—		350,584		—		350,584
Other Government-Sponsored Enterprises	—		946		—		946
Obligations of States and Political Subdivisions	—		7,527		—		7,527
Corporate Securities	—		61,493		—		61,493
Total Securities Available for Sale	—		1,147,623		—		1,147,623
Loans Held for Sale	—		51,991		—		51,991
Other Assets (a)	—		41,569		—		41,569
Total Assets	$	—	$	1,241,183	$	—	$	1,241,183
Other Liabilities (a)	$	—	$	51,983	$	—	$	51,983
Total Liabilities	$	—	$	51,983	$	—	$	51,983

^[1]

Schedule of Assets Measured on Nonrecurring Basis

The tables below present the balances of assets measured at fair value on a nonrecurring basis at December 31 and total gains and losses realized on these assets during the year ended December 31:

	2025
	Level 1		Level 2		Level 3		Total		Total Gains (Losses)
	(dollars in thousands)
Loans held for sale	$	—	$	225,381	$	—	$	225,381	$	—
Nonperforming loans	—		40,617		41,303		81,920		(18,677)
Other real estate owned	—		1,014		—		1,014		(284)
Total Assets	$	—	$	267,012	$	41,303	$	308,315	$	(18,961)

	2024
	Level 1		Level 2		Level 3		Total		Total Gains (Losses)
	(dollars in thousands)
Loans held for sale	$	—	$	228	$	—	$	228	$	—
Nonperforming loans	—		39,407		14,084		53,491		(16,287)
Other real estate owned	—		1,215		—		1,215		(29)
Total Assets	$	—	$	40,850	$	14,084	$	54,934	$	(16,316)

Carrying Amounts and Fair Values of Financial Instruments

The following table presents carrying amounts and estimated fair values of First Commonwealth’s financial instruments at December 31:

	2025
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	103,280	$	103,280	$	103,280	$	—	$	—
Interest-bearing deposits	77,082		77,082		77,082		—		—
Securities available for sale	1,014,194		1,014,194		—		1,014,194		—
Securities held to maturity	519,422		470,665		—		470,665		—
Other investments	38,295		38,295		—		32,563		5,732
Loans held for sale	271,452		271,452		—		271,452		—
Loans and leases	9,508,039		9,657,464		—		40,617		9,616,847
Financial liabilities
Deposits	10,250,969		10,248,485		—		10,248,485		—
Short-term borrowings	147,966		147,926		—		147,926		—
Long-term debt	129,555		130,108		—		130,108		—
Subordinated debt	128,466		121,747		—		—		121,747
Capital lease obligation	3,721		3,721		—		3,721		—

	2024
			Fair Value Measurements Using:
	Carrying Amount		Total		Level 1		Level 2		Level 3
	(dollars in thousands)
Financial assets
Cash and due from banks	$	105,051	$	105,051	$	105,051	$	—	$	—
Interest-bearing deposits	28,358		28,358		28,358		—		—
Securities available for sale	1,147,623		1,147,623		—		1,147,623		—
Securities held to maturity	405,639		336,719		—		336,719		—
Other investments	30,954		30,954		—		25,222		5,732
Loans held for sale	51,991		52,219		—		52,219		—
Loans and leases	8,983,754		8,999,020		—		39,407		8,959,613
Financial liabilities
Deposits	9,678,019		9,672,358		—		9,672,358		—
Short-term borrowings	80,139		79,151		—		79,151		—
Long-term debt	130,353		129,880		—		129,880		—
Subordinated debt	128,305		115,747		—		—		115,747
Capital lease obligation	4,327		4,327		—		4,327		—

[1] Hedging and non-hedging interest rate derivatives