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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Statement Of Income And Comprehensive Income [Abstract] |  |  |  |
Net income (loss) | $ 12,132 | $ 22,822 | $ 11,591 | $ 37,446
Other comprehensive income (loss) before taxes: |  |  |  |
Change in fair value of interest rate swap agreements | 42 | (2,798) | 2,144 | (7,676)
Provision for income tax benefit (expense) related to components of other comprehensive income (loss) | (16) | 1,063 | (815) | 2,916
Other comprehensive income (loss) | 26 | (1,735) | 1,329 | (4,760)
Comprehensive income (loss) | $ 12,158 | $ 21,087 | $ 12,920 | $ 32,686

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e557-108580 + Details
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