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Derivative Financial Instruments - Cash Flow Hedges (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 USD ($) derivative | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) derivative | Jun. 30, 2017 USD ($) | Dec. 31, 2017 USD ($) derivative
Cash Flow Hedges |  |  |  |  |
Effect of cash flow hedging relationships |  |  |  |  |
Pretax gains recognized in other comprehensive income on derivatives (effective portion) | $ 425 | $ 258 | $ 1,163 | $ 856 |
Pretax gain reclassified from accumulated other comprehensive income |  |  | 0 | 0 |
Interest rate swaps |  |  |  |  |
Cash flow hedges |  |  |  |  |
Recognized expenses related to the ineffective portion |  |  | 0 | 0 |
Interest rate swaps | Cash Flow Hedges |  |  |  |  |
Cash flow hedges |  |  |  |  |
Net interest expense on derivative | $ 400 | $ 600 | $ 900 | $ 1,300 |
Minimum | Interest rate swaps | Cash Flow Hedges |  |  |  |  |
Cash flow hedges |  |  |  |  |
Fixed interest rate (as a percent) | 2.98% |  | 2.98% |  | 2.98%
Maximum | Interest rate swaps | Cash Flow Hedges |  |  |  |  |
Cash flow hedges |  |  |  |  |
Fixed interest rate (as a percent) | 3.03% |  | 3.03% |  | 3.03%
Derivatives designated as hedging instruments | Interest rate swaps |  |  |  |  |
Cash flow hedges |  |  |  |  |
Notional amounts | $ 193,022 |  | $ 193,022 |  | $ 194,687
Derivatives designated as hedging instruments | Interest rate swaps | Cash Flow Hedges |  |  |  |  |
Cash flow hedges |  |  |  |  |
Number of derivatives carried | derivative | 2 |  | 2 |  | 2
Notional amounts | $ 150,000 |  | $ 150,000 |  | $ 150,000
Fair value losses | $ 300 |  | $ 300 |  | $ 1,500

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The premium (cost) of a hedge, net of any cash received on settlement during the period. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income 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 (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959 + Details
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