Investment Securities (Schedule of Amortized Cost of held to Maturity Debt Securities by Year of Originations and Credit Rating) (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 267,668	$ 282,143
Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,000	3,400
State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	265,726	276,600
Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	942	2,143
AAA
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	44,957	48,330
AAA \| Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	1,000	3,400
AAA \| State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	43,957	44,930
AAA \| Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
AA
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	192,207	200,550
AA \| Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
AA \| State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	191,635	199,977
AA \| Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	572	573
A
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	18,365	22,466
A \| Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
A \| State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	17,995	20,896
A \| Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	370	1,570
BBB
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
BBB \| Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
BBB \| State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
BBB \| Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
Not Rated
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	12,139	10,797
Not Rated \| Government-agency obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	0	0
Not Rated \| State and municipal obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	12,139	10,797
Not Rated \| Corporate obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost	$ 0	$ 0

PROVIDENT FINANCIAL SERVICES INC 10-Q