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PARENT COMPANY FINANCIAL STATEMENTS - Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income | $ 19,038 | $ 14,536 | $ 15,924 | $ 12,574 | $ 10,110 | $ 11,247 | $ 8,099 | $ 749 | $ 62,072 | $ 30,205 | $ (84)
Adjustments to reconcile net income to net cash used in operating activities |  |  |  |  |  |  |  |  |  |  |
Stock option compensation expense |  |  |  |  |  |  |  |  | 528 | 480 | 582
Stock award compensation expense |  |  |  |  |  |  |  |  | 8,598 | 5,838 | 2,311
Stock appreciation right expense |  |  |  |  |  |  |  |  | 202 | 1,889 | 1,072
Amortization of debt issuance cost |  |  |  |  |  |  |  |  | 727 | 686 | 385
Net gain on sale of loans |  |  |  |  |  |  |  |  | (37,211) | (19,828) | (8,700)
Net amortization of securities |  |  |  |  |  |  |  |  | 1,602 | 746 | 1,742
Deferred income tax (benefit) expense |  |  |  |  |  |  |  |  | 7,279 | (17,157) | 7,573
Net cash used in operating activities |  |  |  |  |  |  |  |  | (45,243) | (627,516) | (435,489)
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Loan purchases from bank and principal collections, net |  |  |  |  |  |  |  |  | (705,709) | (38,572) | (857,733)
Proceeds from sale of loans held-for-investment |  |  |  |  |  |  |  |  | 575,477 | 161,638 | 276,516
Net cash used in investing activities |  |  |  |  |  |  |  |  | (2,256,550) | (463,154) | (1,303,482)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Net proceeds from issuance of tangible equity units |  |  |  |  |  |  |  |  | 0 | 64,959 | 0
Net proceeds from issuance of common stock |  |  |  |  |  |  |  |  | 0 | 103,656 | 67,792
Net proceeds from issuance of preferred stock |  |  |  |  |  |  |  |  | 110,873 | 0 | 37,943
Payment of Amortizing Debt |  |  |  |  |  |  |  |  | (4,715) | (2,157) | 0
Purchase of treasury stock |  |  |  |  |  |  |  |  | 0 | (280) | (5,005)
Proceeds from exercise of stock options |  |  |  |  |  |  |  |  | 501 | 993 | 540
Dividends paid on stock appreciation rights |  |  |  |  |  |  |  |  | (699) | (471) | 0
Dividends paid on common stock |  |  |  |  |  |  |  |  | (16,955) | (10,669) | (6,736)
Dividends paid on preferred stock |  |  |  |  |  |  |  |  | (9,446) | (3,652) | (2,185)
Net cash provided by financing activities |  |  |  |  |  |  |  |  | 2,226,718 | 1,211,751 | 1,740,446
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | (75,075) | 121,081 | 1,475
Cash and cash equivalents at beginning of year |  |  |  | 231,199 |  |  |  | 110,118 | 231,199 | 110,118 | 108,643
Cash and cash equivalents at end of year | 156,124 |  |  |  | 231,199 |  |  |  | 156,124 | 231,199 | 110,118
Banc of California, Inc. |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 62,072 | 30,205 | (84)
Adjustments to reconcile net income to net cash used in operating activities |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (73,605) | (31,740) | (20,728)
Stock option compensation expense |  |  |  |  |  |  |  |  | 336 | 260 | 121
Stock award compensation expense |  |  |  |  |  |  |  |  | 2,635 | 1,824 | 806
Stock appreciation right expense |  |  |  |  |  |  |  |  | 202 | 1,889 | 1,072
Amortization of debt issuance cost |  |  |  |  |  |  |  |  | 727 | 686 | 385
Net gain on sale of loans |  |  |  |  |  |  |  |  | 0 | (209) | 0
Net amortization of securities |  |  |  |  |  |  |  |  | 0 | (298) | 0
Deferred income tax (benefit) expense |  |  |  |  |  |  |  |  | (3,575) | (1,298) | 0
Net change in other assets and liabilities |  |  |  |  |  |  |  |  | 37,515 | (26,471) | 8,601
Net cash used in operating activities |  |  |  |  |  |  |  |  | 26,307 | (25,152) | (9,827)
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Loan purchases from bank and principal collections, net |  |  |  |  |  |  |  |  | 9 | 568 | (6,043)
Proceeds from sale of loans held-for-investment |  |  |  |  |  |  |  |  | 0 | 5,347 | 0
Investment in acquired business |  |  |  |  |  |  |  |  | 0 | 0 | (29,465)
Net cash used in investing activities |  |  |  |  |  |  |  |  | (159,991) | (121,085) | (116,608)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Net proceeds from issuance of long term debt |  |  |  |  |  |  |  |  | 172,304 | 0 | 0
Net proceeds from issuance of tangible equity units |  |  |  |  |  |  |  |  | 0 | 64,959 | 0
Net proceeds from issuance of common stock |  |  |  |  |  |  |  |  | 0 | 103,656 | 67,792
Net proceeds from issuance of preferred stock |  |  |  |  |  |  |  |  | 110,873 | 0 | 37,943
Payment of Amortizing Debt |  |  |  |  |  |  |  |  | (4,715) | (2,157) | 0
Purchase of treasury stock |  |  |  |  |  |  |  |  | 0 | (280) | (5,005)
Proceeds from exercise of stock options |  |  |  |  |  |  |  |  | 501 | 993 | 540
Dividends paid on stock appreciation rights |  |  |  |  |  |  |  |  | (699) | (471) | 0
Dividends paid on common stock |  |  |  |  |  |  |  |  | (16,955) | (10,669) | (6,736)
Dividends paid on preferred stock |  |  |  |  |  |  |  |  | (9,446) | (3,652) | (2,185)
Net cash provided by financing activities |  |  |  |  |  |  |  |  | 251,863 | 152,379 | 92,349
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | 118,179 | 6,142 | (34,086)
Cash and cash equivalents at beginning of year |  |  |  | $ 31,362 |  |  |  | $ 25,220 | 31,362 | 25,220 | 59,306
Cash and cash equivalents at end of year | $ 149,541 |  |  |  | $ 31,362 |  |  |  | 149,541 | 31,362 | 25,220
Banc of California, Inc. | Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Capital contribution to subsidiary |  |  |  |  |  |  |  |  | (160,000) | (127,000) | (81,000)
Banc of California, Inc. | Non-Bank Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Capital contribution to subsidiary |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ (100)

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- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash outflow from (a) purchases of loans held-for-investment, (b) purchases of leases held-for-investment, and (c) both. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow from Sales of Loans Held For Investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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