Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								5 Months Ended	7 Months Ended	12 Months Ended
	Sep. 27, 2019	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Jul. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Total revenue		$ 77,246	$ 62,442	$ 62,855	$ 61,492	$ 68,688	$ 64,082	$ 55,842	$ 57,685			$ 264,035	$ 246,297	$ 203,767
Gross Profit		24,287	21,264	20,645	20,352	22,038	20,214	19,249	20,117			86,548	81,618	57,745
Operating income		11,919	5,589	9,820	8,690	12,096	10,940	9,201	10,927			36,018	43,164	23,488
Net loss		$ 3,105	$ (18,010)	$ (5,423)	$ (6,724)	$ (3,406)	$ (3,677)	$ (5,409)	$ (3,034)	$ (16,064)	$ (10,988)	$ (27,052)	$ (15,526)	$ (27,095)
Basic and diluted net loss per share (USD per share)		$ 0.06	$ (0.45)	$ (0.25)	$ (0.31)	$ (0.16)	$ (0.17)	$ (0.25)	$ (0.14)			$ (0.82)	$ (0.72)	$ (1.25)
Transaction expenses		$ 200	$ 3,300	$ 1,600	$ 2,500							$ 7,641	$ 440	$ 202
Loss on extinguishment of debt			$ 4,000									4,005	0	0
Asset impairment	$ 700											$ 657	$ 0	$ 610
Statutorily-required minimum benefits charge	200
Assets Leased to Others
Revenue from External Customer [Line Items]
Asset impairment	$ 700