Leases - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Lessee Lease Description [Line Items]
Operating lease, option to extend lease term, description			Our leases have remaining lease terms that vary from less than one year up to 28 years, some of which include options to extend the leases for various renewal periods.
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Berkshire Hills Bancorp [Member]
Lessee Lease Description [Line Items]
Business acquisition, lease assumned	$ 946,000		$ 946,000
ASU 2016-02 [Member]
Lessee Lease Description [Line Items]
Lease rental income	$ 40,000	$ 53,000	$ 148,000	$ 149,000
Minimum [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term			1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term			28 years