Consolidated Statements of Comprehensive (Loss)/Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statements of Comprehensive (Loss)/Income
Net (loss)/income	$ (22,548)	$ 6,094	$ 15,494
Other comprehensive (loss)/income, net of tax:
(Losses)/gains on interest rate swap	(6,566)	(4,492)	(379)
Total other comprehensive (loss)/income, net of tax	(6,566)	(4,492)	(379)
Total comprehensive (loss)/income, net of tax	$ (29,114)	$ 1,602	$ 15,115