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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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REGULATORY CAPITAL MATTERS - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Quarterly dividend (in usd per share)				$ 0.13	$ 0.24	$ 0.31	$ 0.52
Minimum
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock dividends declared and paid (in usd per share), Dividends, Per Share, Cash Paid	$ 0.06	$ 0.06	$ 0.06
Quarterly dividend (in usd per share)	$ 0.06	$ 0.06	$ 0.06
Common Stock
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock dividends declared and paid (in usd per share), Dividends, Per Share, Cash Paid					0.24	0.31
Quarterly dividend (in usd per share)					0.24	$ 0.31
Preferred Stock
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock dividends declared and paid (in usd per share), Dividends, Per Share, Cash Paid					0.06
Quarterly dividend (in usd per share)					$ 0.06
Banc of California, NA
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Payments of dividends					$ 37.0