v3.26.1
Deposits - Narrative (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Statistical Disclosure for Banks [Abstract]
Brokered time deposits
$ 2,740
$ 2,640
X
- Definition
Time Deposits, Brokered
+ References
No definition available.
+ Details
Name:
npb_TimeDepositsBrokered
Namespace Prefix:
npb_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
srt_StatisticalDisclosureForBanksAbstract
Namespace Prefix:
srt_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration