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Federal Home Loan Bank and Federal Reserve Bank Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2016
Debt Instrument [Line Items] |
Schedule of Financial Instruments Owned and Pledged as Collateral | The following table presents the class of collateral pledged for repurchase agreements as well as the remaining contractual maturity of the repurchase agreements:
|  | Remaining contractual maturity of the agreements
|  | Overnight and continuous |  | Up to 30 days |  | 30 - 90 days |  | Greater than 90 days |  | Total
December 31, 2016 |  | (in thousands)
Class of collateral pledged for repurchase agreements |  |  |  |  |  |  |  |  |  |
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations |  | $ | 55,822 |  |  | $ | — |  |  | $ | — |  |  | $ | 25,000 |  |  | $ | 80,822 |
Gross amount of recognized liabilities for repurchase agreements |  | 80,822 |
Amounts related to agreements not included in offsetting disclosure |  | $ | — |
Federal Home Loan Bank Advances [Member] |
Debt Instrument [Line Items] |
Schedule of Maturities of Long-term Debt | At December 31, 2016 FHLB advances were scheduled to mature as follows:
|  | Federal Home Loan Bank Advances Fixed rate advances
|  | Weighted Average Rate |  | Amount
|  | (dollars in thousands)
Over 1 through 5 years |  | 5.66 | % |  | $ | 1,000 |
Due after 10 years |  | 5.37 | % |  | 5,000 |
Total |  | 6,000 |
Valuation adjustment from acquisition accounting |  | 493 |
Total |  | $ | 6,493 |
Debt Instrument Activity For Year | The maximum, average outstanding and year-end balances and average interest rates on advances from the FHLB were as follows for the years ended December 31, 2016, 2015 and 2014:
|  | Years ended December 31,
|  | 2016 |  | 2015 |  | 2014
|  | (dollars in thousands)
Balance at end of year |  | $ | 6,493 |  |  | $ | 68,531 |  |  | $ | 216,568 |
Average balance during the year |  | $ | 79,673 |  |  | $ | 70,678 |  |  | $ | 44,876 |
Maximum month-end balance during the year |  | $ | 250,515 |  |  | $ | 242,556 |  |  | $ | 216,568 |
Weighted average rate during the year |  | 0.80 | % |  | 0.68 | % |  | 0.74 | %
Weighted average rate at December 31 |  | 5.42 | % |  | 0.79 | % |  | 0.41 | %
Schedule of Financial Instruments Owned and Pledged as Collateral | FHLB advances are collateralized by the following:
|  | December 31,
|  | 2016 |  | 2015
|  | (in thousands)
Recorded value of blanket pledge on loans receivable |  | $ | 1,510,514 |  |  | $ | 1,399,201 |
Total |  | $ | 1,510,514 |  |  | $ | 1,399,201 |
FHLB borrowing capacity |  | $ | 1,502,284 |  |  | $ | 1,328,971 |
Federal Reserve Bank Advances [Member] |
Debt Instrument [Line Items] |
Debt Instrument Activity For Year | the Company has not had FRB borrowings in the last three years
Schedule of Financial Instruments Owned and Pledged as Collateral | The following table shows amounts pledged to the Federal Reserve Bank:
|  | December 31,
|  | 2016 |  | 2015
|  | (in thousands)
Fair value of investment securities |  | $ | 32,795 |  |  | $ | 47,516 |
Recorded value of pledged commercial loans |  | 28,212 |  |  | 37,912 |
Total |  | $ | 61,007 |  |  | $ | 85,428 |
Federal Reserve Bank borrowing capacity |  | $ | 61,007 |  |  | $ | 85,428 |

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- Definition Tabular disclosure of financial instruments held by the entity for its own account for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Description may include equity, fixed income, debt or other securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728 + Details
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