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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Effect of derivative instruments on consolidated financial position | The following table presents the effect of our derivative instruments designated as cash flow hedging instruments on our consolidated balance sheets (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ | ​ | 2020 | ​ | ​ | 2019
Other current assets | ​ | $ | — | ​ | $ | 12
Total derivative assets | ​ | $ | — | ​ | $ | 12
​ | ​ | ​ | ​ | ​ | ​ | ​
Accrued liabilities | ​ | $ | 4,810 | ​ | $ | 593
Other liabilities | ​ |  | 1,527 | ​ |  | 1,175
Total derivative liabilities | ​ | $ | 6,337 | ​ | $ | 1,768
​
Effect of derivative instruments on results of operations | The following table presents the effect of our derivative instruments designated as cash flow hedging instruments on our consolidated statements of operations (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2020 |  | 2019 |  | 2018
Pre-tax gain (loss) recognized in other comprehensive income (loss) | ​ | $ | (8,459) | ​ | $ | (6,785) | ​ | $ | 3,512
Pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) into interest expense | ​ |  | (3,878) | ​ |  | 2,278 | ​ |  | 617
Total amount of interest expense in which the effects of cash flow hedges are recorded | ​ | ​ | 105,716 | ​ | ​ | 104,681 | ​ | ​ | 93,328
​

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959 Reference 2: 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=121590274&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
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