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Derivative Instruments (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Effect of Derivative Instruments on Consolidated Statements of Income and Consolidated Statements of Comprehensive Income |  |  |
Realized loss on derivative instruments, net | $ (2,237) | $ (2,072) | $ 900
Unrealized (gain) loss on derivative instruments | 3,107 | 430 | (1,397)
Comprehensive loss | Interest rate swap agreements | Designated as Hedging Instrument [Member] |  |  |
Effect of Derivative Instruments on Consolidated Statements of Income and Consolidated Statements of Comprehensive Income |  |  |
Designated derivative instruments | 48,653 | 2,119 | 641
Interest expense | Interest rate swap agreements | Designated as Hedging Instrument [Member] |  |  |
Effect of Derivative Instruments on Consolidated Statements of Income and Consolidated Statements of Comprehensive Income |  |  |
Designated derivative instruments | (6,048) | (6,780) | 611
Gain (Loss) on Derivative Instruments [Member] | Interest rate swap agreements | Not Designated as Hedging Instrument [Member] |  |  |
Effect of Derivative Instruments on Consolidated Statements of Income and Consolidated Statements of Comprehensive Income |  |  |
Realized loss on derivative instruments, net | (2,237) | (2,072) | 900
Unrealized (Gain) Loss On Derivative Instruments [Member] | Interest rate swap agreements | Not Designated as Hedging Instrument [Member] |  |  |
Effect of Derivative Instruments on Consolidated Statements of Income and Consolidated Statements of Comprehensive Income |  |  |
Unrealized (gain) loss on derivative instruments | $ 3,107 | $ 430 | $ (1,397)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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