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SALES OF BRANCH, SUBSIDIARY AND BUSINESS UNITS - Net Gain on Disposal of Discontinued Operations (Details) - USD ($) $ in Thousands |  | 6 Months Ended | 12 Months Ended | 21 Months Ended
--- | --- | --- | --- | ---
Mar. 30, 2017 | Jun. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from sale of business unit |  |  | $ 0 | $ 0 | $ 246,957 |
Net cash proceeds |  |  | 0 | 56,123 | 0 |
Book value of MSRs sold |  | $ (28,500) | (28,549) | (39,345) | (5,382) |
Net gain on disposal of discontinued operations |  |  | 1,439 | 13,796 | 0 |
Banc Home Loan | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from sale of business unit |  |  | 0 | 63,054 |  | $ 63,054
Compensation expense related to the transaction |  |  | 1,003 | (3,500) |  | (2,497)
Other transaction costs |  |  | 436 | (3,431) |  | (2,995)
Net cash proceeds |  |  | 1,439 | 56,123 |  | 57,562
Book value of certain assets sold |  |  |  | (2,455) |  |
Book value of MSRs sold | $ (37,800) |  | (28,500) | (37,772) |  | (37,772)
Goodwill |  |  |  | (2,100) |  |
Net gain on disposal of discontinued operations |  |  | $ 1,439 | $ 13,796 | $ 0 | $ 15,235

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- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759 + Details
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