v3.26.3
Deposits (Narrative) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Time Deposits [Abstract]
Time deposits greater than FDIC limit
$ 360.5
$ 355.9
X
- References
No definition available.
+ Details
Name:
us-gaap_TimeDepositsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Time deposits that meet or exceed the $250,000 FDIC limit
+ References
No definition available.
+ Details
Name:
wash_TimedepositsgreaterthanFDIClimit
Namespace Prefix:
wash_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant