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Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of Fair Values of Derivative Instruments in Consolidated Balance Sheets A summary of the fair values of derivative instruments in the consolidated balance sheets was as follows (in thousands):
June 30, 2020December 31, 2019
Derivatives Designated as Hedging InstrumentsBalance Sheet
Classification		Fair ValueBalance Sheet
Classification		Fair Value
Variable-to-fixed interest rate swapOther long-term liabilities$56,058  Other assets$16,373