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Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement of Comprehensive Income [Abstract]        
Net income $ 2,884 $ 2,984 $ 1,610 $ 12,642
Other comprehensive income (loss):        
Currency translation adjustment (15) 551 143 325
Unrealized gain (loss) on derivative instruments 653 684 6,380 (3,088)
Unrealized gain on derivative instruments at joint venture 206 0 918 0
Net gain (loss) recognized in other comprehensive income (loss) 844 1,235 7,441 (2,763)
Tax (expense) benefit related to items of other comprehensive income (loss) (190) (273) (1,686) 612
Other comprehensive income (loss) 654 962 5,755 (2,151)
Total comprehensive income $ 3,538 $ 3,946 $ 7,365 $ 10,491