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Financial Derivatives - Schedule of Credit Exposure to Interest Rate Swap Counterparties (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Derivative [Line Items] |  |
Liabilities derivatives interest rate swaps | $ 22,203 | $ 19,633
Excluding Netting [Member] | Including Accrued Interest [Member] |  |
Derivative [Line Items] |  |
Assets derivatives interest rate swaps | 42,551 | 51,267
Liabilities derivatives interest rate swaps | 139,843 | 78,437
Counterparty Netting [Member] | Including Accrued Interest [Member] |  |
Derivative [Line Items] |  |
Assets derivatives interest rate swaps | 38,417 | 48,124
Liabilities derivatives interest rate swaps | 133,793 | 64,568
Netting [Member] | Including Accrued Interest [Member] |  |
Derivative [Line Items] |  |
Assets derivatives interest rate swaps | 4,134 | 3,143
Liabilities derivatives interest rate swaps | $ 6,050 | $ 13,869

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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
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