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Business Combinations - Additional Information (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 06, 2016 | Mar. 03, 2015 | Feb. 26, 2015 | Apr. 07, 2015 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2015 | Feb. 27, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Securities transferred in satisfaction of other borrowings |  |  |  |  |  |  |  | $ 98,316,000 |  |
Repayment of other borrowings |  |  |  |  |  |  |  | 1,659,000 |  |
Business acquisition, bargain purchase gain |  |  |  |  |  |  |  | 12,509,000 |  |
ColoEast Bankshares, Inc. |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Total consideration transferred, maximum | $ 70,000,000 |  |  |  |  |  |  |  |  |
Total consideration transferred, minimum | $ 69,000,000 |  |  |  |  |  |  |  |  |
Business combination, total assets |  |  |  |  |  | $ 759,000,000 |  |  | $ 759,000,000 |
Business combination, total loans |  |  |  |  |  | 453,000,000 |  |  | 453,000,000 |
Business combination, total deposits |  |  |  |  |  | 664,000,000 |  |  | 664,000,000 |
Doral Money Acquisition |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination, total assets |  |  |  |  |  | 151,646,000 |  |  | 151,646,000 |
Business combination, total loans |  |  |  |  |  | 37,665,000 |  |  | 37,665,000 |
Business acquisition, percentage of voting interests acquired |  |  |  |  |  |  |  |  |  | 100.00%
CLO management contract acquired - Assets under management |  | $ 700,000,000 |  |  |  |  |  |  |  |
Business combination, consideration transferred cash paid |  | 133,263,000 |  |  |  |  |  |  |  |
Business combination, sales price adjustment |  | 2,601,000 |  |  |  |  |  |  |  |
Total consideration transferred |  |  |  | $ 135,864,000 |  |  |  |  | 135,864,000 |
Business acquisition, bargain purchase gain |  |  |  |  |  |  |  |  | 15,117,000 |
Pre-tax expenses |  |  |  |  |  |  |  | 243,000 |  |
Gain (loss) on sale of loans |  |  |  |  |  |  |  | $ 0 |  |
Doral Money Acquisition | Measurement Period Adjustments |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination, total assets |  |  |  |  |  | 2,588,000 |  |  | 2,588,000 |
Business combination, total loans |  |  |  |  |  | 900,000 |  |  | 900,000 |
Business acquisition, bargain purchase gain |  |  |  |  |  | $ 900,000 | $ 1,708,000 |  | $ 2,608,000 |
Doral Money Acquisition | Secured term loan credit facility |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Other borrowings payable to third party |  |  | $ 99,975,000 |  |  |  |  |  |  |
Debt instrument maturity date |  |  | Mar. 31, 2015 |  |  |  |  |  |  |
Repayment of debt instrument |  | 99,975,000 |  |  |  |  |  |  |  |
Securities transferred in satisfaction of other borrowings |  | 98,316,000 |  |  |  |  |  |  |  |
Repayment of other borrowings |  | $ 1,659,000 |  |  |  |  |  |  |  |
Doral Money Acquisition | Secured term loan credit facility | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, marginal interest rate |  |  | 3.50% |  |  |  |  |  |  |
Debt instrument, interest rate description |  |  |  |  | LIBOR plus 3.5% |  |  |  |  |

X
- Definition Amount of assets under management of collateralized loan obligations for which management contracts were acquired in a business combination. + References No definition available. + Details
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- Definition The amount of cash reserved for the purchase of a business entity - Maximum amount if certain targets are achieved. + References No definition available. + Details
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- Definition The amount of cash reserved for the purchase of a business entity - Minimum amount if certain targets are not achieved. + References No definition available. + Details
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- Definition Business combination recognized identifiable assets acquired and liabilities assumed deposits. + References No definition available. + Details
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- Definition Business combination sales price adjustment. + References No definition available. + Details
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- Definition Gain (loss) on sales of acquired loans net. + References No definition available. + Details
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- Definition Securities transferred in satisfaction of other borrowings. + References No definition available. + Details
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- Definition Repayments of borrowings (having initial terms of repayment within one year or the normal operating cycle, if longer) through the transfer of cash and securities. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6393-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6527-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6571-128477 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6387-128476 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6396-128476 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)(7)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: 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 attributable to repayments of borrowings not otherwise defined in the taxonomy (having initial terms of repayment within one year or the normal operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 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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- Details
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