XML 108 R93.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Note 12 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Commitments To Extend Notional Amount | $ 3,297,362 | $ 2,977,528
Commitments to Fund Fixed Rate Loans | 111,400 | 59,900
Commitments to Fund Adjustable Rate Loans | $ 3,200,000 | $ 2,900,000

X
- Definition Commitments To Extend Notional Amount + References No definition available. + Details
Name: | caty_CommitmentsToExtendNotionalAmount
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments to fund adjustable rate loans. + References No definition available. + Details
Name: | caty_CommitmentsToFundAdjustableRateLoans
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments to fund fixed rate loans. + References No definition available. + Details
Name: | caty_CommitmentsToFundFixedRateLoans
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant