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Derivative Instruments and Hedge Activities (Tables) | 12 Months Ended
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Dec. 31, 2017
Summary of Derivative Financial Instruments and Classification on Consolidated Statements of Financial Condition | The following tables present the fair value of the Company’s derivative financial instruments and classification on the Consolidated Statements of Financial Condition as of December 31, 2017 and 2016:
|  | 2017 |  |  | 2016 |
|  |  |  |  |  | Fair Value |  |  |  |  |  |  | Fair Value |
|  | Notional Amount |  |  | Other Assets |  |  | Other Liabilities |  |  | Notional Amount |  |  | Other Assets |  |  | Other Liabilities |
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps designated as cash flow hedges |  | $ | 250,000 |  |  | $ | 5,030 |  |  | $ | 38 |  |  | $ | 100,000 |  |  | $ | 3,719 |  |  | $ | — |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other interest rate swaps |  |  | 94,726 |  |  |  | 951 |  |  |  | 956 |  |  |  | 51,213 |  |  |  | 598 |  |  |  | 559 |
Total derivatives |  | $ | 344,726 |  |  | $ | 5,981 |  |  | $ | 994 |  |  | $ | 151,213 |  |  | $ | 4,317 |  |  | $ | 559 |
Summary of Net Gains (Losses) Recorded in Accumulated Other Comprehensive Income (Loss) and Consolidated Statements of Operations Relating to Cash Flow Derivative Instruments | The following table reflects the net gains (losses) recorded in accumulated other comprehensive income (loss) and the Consolidated Statements of Operations relating to the cash flow derivative instruments for the year ended December 31, 2017:
|  | Amount of Gain Recognized in OCI (Effective Portion) |  |  | Amount of Loss Reclassified from OCI to Income as an Increase to Interest Expense |  |  | Amount of Gain (Loss) Recognized in Other Non-Interest Income (Ineffective Portion) |
Interest rate swaps |  | $ | 688 |  |  | $ | (579 | ) |  | $ | — |
Summary of Other Interest Rate Swaps | The following table reflects other interest rate swaps as of December 31, 2017:
Notional amounts |  | $ | 94,726 |
Derivative assets fair value |  |  | 951 |
Derivative liabilities fair value |  |  | 956 |
Weighted average pay rates |  |  | 4.38 | %
Weighted average receive rates |  |  | 3.73 | %
Weighted average maturity |  | 6.3 years |
Summary of Company's Interest Rate Derivative and Offsetting Positions | The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative asset and liabilities on the Consolidated Statements of Financial Condition. The table below summarizes the Company’s interest rate derivatives and offsetting positions as of December 31, 2017:
|  | Derivative Assets Fair Value |  |  | Derivative Liabilities Fair Value |
Gross amounts recognized |  | $ | 5,981 |  |  | $ | 994 |
Less: Amounts offset in the Consolidated Statements of Financial Condition |  |  | — |  |  |  | — |
Net amount presented in the Consolidated Statements of Financial Condition |  | $ | 5,981 |  |  | $ | 994 |
Gross amounts not offset in the Consolidated Statements of Financial Condition |  |  |  |  |  |  |  |
Offsetting derivative positions |  |  | (232 | ) |  |  | (232 | )
Collateral posted |  |  | (5,371 | ) |  |  | (745 | )
Net credit exposure |  | $ | 378 |  |  | $ | 17 |
Cash Flow Hedges |
Summary of Cash Flow Hedges | The following table reflects the cash flow hedges as of December 31, 2017:
Notional amounts |  | $ | 250,000 |
Derivative assets fair value |  |  | 5,030 |
Derivative liabilities fair value |  |  | 38 |
Weighted average pay rates |  |  | 1.67 | %
Weighted average receive rates |  |  | 1.63 | %
Weighted average maturity |  | 4.2 years |

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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure for fair value hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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