XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.10.0.1

INVESTMENT SECURITIES (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract] |
Summary of Amortized Cost and Fair Value of Available-for-Sale Investment Securities | The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated:
($ in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
June 30, 2018 |  |  |  |  |  |  |  |
Securities available-for-sale: |  |  |  |  |  |  |  |
SBA loan pool securities |  | $ | 982 |  |  | $ | — |  |  | $ | (15 | ) |  | $ | 967 |
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  | 485,503 |  |  | — |  |  | (28,713 | ) |  | 456,790 |
Non-agency residential mortgage-backed securities |  | 483 |  |  | 15 |  |  | (2 | ) |  | 496 |
Non-agency commercial mortgage-backed securities |  | 160,970 |  |  | 7 |  |  | (2,619 | ) |  | 158,358 |
Collateralized loan obligations |  | 1,676,611 |  |  | 6,996 |  |  | (3,094 | ) |  | 1,680,513 |
Total securities available-for-sale |  | $ | 2,324,549 |  |  | $ | 7,018 |  |  | $ | (34,443 | ) |  | $ | 2,297,124 |
December 31, 2017 |  |  |  |  |  |  |  |
Securities available-for-sale: |  |  |  |  |  |  |  |
SBA loan pool securities |  | $ | 1,056 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 1,058 |
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  | 492,255 |  |  | 10 |  |  | (15,336 | ) |  | 476,929 |
Non-agency residential mortgage-backed securities |  | 741 |  |  | 16 |  |  | (1 | ) |  | 756 |
Non-agency commercial mortgage-backed securities |  | 305,172 |  |  | 5,339 |  |  | — |  |  | 310,511 |
Collateralized loan obligations |  | 1,691,455 |  |  | 11,129 |  |  | (266 | ) |  | 1,702,318 |
Corporate debt securities |  | 76,714 |  |  | 7,183 |  |  | — |  |  | 83,897 |
Total securities available-for-sale |  | $ | 2,567,393 |  |  | $ | 23,679 |  |  | $ | (15,603 | ) |  | $ | 2,575,469 |
Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses | The following table presents proceeds from sales and calls of securities available-for-sale and the associated gross gains and losses realized through earnings upon the sales and calls of securities available-for-sale for the periods indicated:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
($ in thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Gross realized gains on sales and calls of securities available-for-sale |  | $ | 278 |  |  | $ | 1,099 |  |  | $ | 5,519 |  |  | $ | 4,455 |
Gross realized losses on sales and calls of securities available-for-sale |  | — |  |  | — |  |  | — |  |  | — |
Net realized gains on sales and calls of securities available-for-sale |  | $ | 278 |  |  | $ | 1,099 |  |  | $ | 5,519 |  |  | $ | 4,455 |
Proceeds from sales and calls of securities available-for-sale |  | $ | 325,439 |  |  | $ | 475,586 |  |  | $ | 612,956 |  |  | $ | 886,590 |
Tax expense on sales and calls of securities available-for-sale |  | $ | 81 |  |  | $ | 457 |  |  | $ | 1,618 |  |  | $ | 1,853 |
Summary of Investment Securities with Unrealized Losses | The following table summarizes the investment securities with unrealized losses by security type and length of time in a continuous unrealized loss position as of the dates indicated:
|  | Less Than 12 Months |  | 12 Months or Longer |  | Total
($ in thousands) |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |
SBA loan pool securities |  | $ | 966 |  |  | $ | (15 | ) |  | $ | — |  |  | $ | — |  |  | $ | 966 |  |  | $ | (15 | )
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  | $ | 16,907 |  |  | $ | (374 | ) |  | $ | 436,740 |  |  | $ | (28,339 | ) |  | $ | 453,647 |  |  | $ | (28,713 | )
Non-agency residential mortgage-backed securities |  | 95 |  |  | (1 | ) |  | 61 |  |  | (1 | ) |  | 156 |  |  | (2 | )
Non-agency commercial mortgage-backed securities |  | 152,392 |  |  | (2,619 | ) |  | — |  |  | — |  |  | 152,392 |  |  | (2,619 | )
Collateralized loan obligations |  | 295,281 |  |  | (3,094 | ) |  | — |  |  | — |  |  | 295,281 |  |  | (3,094 | )
Total securities available-for-sale |  | $ | 465,641 |  |  | $ | (6,103 | ) |  | $ | 436,801 |  |  | $ | (28,340 | ) |  | $ | 902,442 |  |  | $ | (34,443 | )
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Securities available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  | $ | 4,880 |  |  | $ | (35 | ) |  | $ | 470,092 |  |  | $ | (15,301 | ) |  | $ | 474,972 |  |  | $ | (15,336 | )
Non-agency residential mortgage-backed securities |  | — |  |  | — |  |  | 148 |  |  | (1 | ) |  | 148 |  |  | (1 | )
Collateralized loan obligations |  | 104,334 |  |  | (266 | ) |  | — |  |  | — |  |  | 104,334 |  |  | (266 | )
Total securities available-for-sale |  | $ | 109,214 |  |  | $ | (301 | ) |  | $ | 470,240 |  |  | $ | (15,302 | ) |  | $ | 579,454 |  |  | $ | (15,603 | )

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 + Details
Name: | us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration