Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net (loss) income	$ (14,302)	$ 87	$ 7,817
Adjustments to reconcile net (loss) income to net cash used in operating activities
Depreciation and amortization of intangible assets and loan fees	16,509	12,467	3,614
Foreign exchange loss on liabilities		16	228
(Gain) Loss on disposition of property, plant, and equipment	(189)	(90)	20
Stock based compensation expense	7,355	3,812	447
Deferred tax adjustment	(3,458)	(843)	3,690
Contingent note revaluations	7,320	3,280
Other non-cash activity	405	(334)
Changes in assets and liabilities
Accounts receivable	(14,123)	(14,209)	(4,313)
Inventories	30,448	(36,610)	(9,718)
Other assets	(1,619)	1,423	(721)
Accounts payable	(7,595)	15,701	4,152
Accrued wages payable	2,800	1,979	694
Other accrued expenses	(2,718)	908	(28)
Net cash (used in) provided by operating activities	20,833	(12,413)	5,882
Cash flows from investing activities
Proceeds from disposition of property, plant, and equipment	340	229
Purchase of property, plant, and equipment	(10,276)	(7,178)	(4,131)
Business acquisitions (net of cash acquired)	(185,090)	(93,052)
Net cash used in investing activities	(195,026)	(100,001)	(4,131)
Cash flows from financing activities
Proceeds from issuance of long-term debt	818,387	538,028	260,020
Principal payments on long-term debt	(676,509)	(466,912)	(270,458)
Proceeds from Public Offering of Class A Shares, net of underwriting discounts and offering costs		73,914	104,010
Repayment of preference notes			(55,960)
Change in restricted deposits			50
Tax Distributions to LLC Owners	(1,686)	(1,485)
Purchase of LLC units from Continuing LLC Owners			(2,133)
Principal payments on finance lease obligations	(1,547)	(1,254)	(116)
Payment of deferred financing fees and debt discount	(5,790)	(2,750)	(42)
Tax withholding payments on Restricted Stock Units	(114)
Exercise of options and RSU withholdings to purchase common stock	2,318	1,429
Net cash provided by financing activities	135,059	140,970	35,371
Net change in cash and cash equivalents	(39,134)	28,556	37,122
Effect of exchange rate changes on cash and cash equivalents	46	(92)	7
Cash and cash equivalents, beginning of period	66,360	37,896	767
Cash and cash equivalents, end of period	27,272	66,360	37,896
Supplemental cash flow information
Interest paid	13,632	7,220	1,353
Net change in property, plant, and equipment acquired through accounts payable	(1,814)	25	(80)
Finance lease additions	(3,006)	656	35
Issuance of preference notes for LLC Interests			55,960
Net change of deferred tax asset from step-up in basis	12,381	36,882	9,441
Income taxes paid	249	640	323
Accrued tax distribution	$ 786	2,097	$ 597
Non cash consideration - Contingent notes		6,900
Non cash consideration - Guarantee note		10,000
Non cash consideration - Issuance of Class B common stock and LLC Interests		$ 103,004