XML 20 R8.htm IDEA: XBRL DOCUMENT v3.21.2

Consolidated Statements of Changes in Shareholders' Equity - Unaudited (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Special dividend (shares)			0.15389
Series C Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.350359	$ 0.4375	$ 0.69514	$ 0.8750
Series D Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	0.336942	0.40625	0.743192	0.81250
Series E Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	0.403125	0.403125	0.806250	0.806250
Series F Preferred Stock
Preferred stock, dividends, per share, cash paid (usd per share)	$ 0.375	$ 0.375	$ 0.750	$ 0.750

X

- Definition

Special Dividends, Shares

+ References

No definition available.

+ Details

Name:	cubi_SpecialDividendsShares
Namespace Prefix:	cubi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate dividends paid during the period for each share of preferred stock outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_PreferredStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesDPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesEPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesFPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: