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Long-Term Debt - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Nov. 30, 2012
Debt Instrument [Line Items] |  |  |  |
Gains (Losses) on Restructuring of Debt | $ 500 | $ 3,200 |  |
prepayment penalty amount remaining to amortize | 2,100 |  |  |
Amortization of prepayment penalty on long term debt | 6,047 | 5,031 | $ 4,835 |
Prepayment Penalty, Future Amortization Expense [Abstract] |  |  |  |
Prepayment penalty | 11,895 | 17,941 |  |
Long-term debt with contractual maturity longer than five years | 150,000 | 150,699 |  |
Money Pledged as Collateral for FHLB Advance Borrowings | 21,000 | 28,000 |  |
FHLB Debt Prepaid | $ 54,500 |  |  |
FHLB Debt Prepaid Weighted Avg Rate | 1.59% |  |  |
FHLB Debt Amount Restructured |  | $ 50,000 |  |
Broker Repurchase Agreements |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt repurchased during period |  |  |  | $ 300,000
Debt repurchased during period, rate |  |  |  | 1.75%
Total prepayment penalty | $ 25,000 |  |  |
Effective interest rate percentage | 3.55% |  |  |
Prepayment Penalty, Future Amortization Expense [Abstract] |  |  |  |
Prepayment penalty | $ 9,800 |  |  |
Payments of Debt Extinguishment Costs, Amount to be Amortized in Year Two | 5,100 |  |  |
Payments of Debt Extinguishment Costs, Amount to be Amortized in Year Three | $ 4,700 |  |  |
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt repurchased during period, rate |  |  |  | 1.25%
Effective interest rate percentage | 3.52% |  |  |
Prepayment Penalty, Future Amortization Expense [Abstract] |  |  |  |
Payments of Debt Extinguishment Costs, Amount to be Amortized in Year Two | $ 1,100 |  |  |
Payments of Debt Extinguishment Costs, Amount to be Amortized in Year Three | $ 1,000 |  |  |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 60 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6402221&loc=d3e15743-112638 + Details
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