Acquisitions and Dispositions Acquisition (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Feb. 27, 2018
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 42,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	7,772,021
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned						$ 28,200,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		$ 4,300,000		$ 4,300,000	$ 0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						15,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other		16,880,000		16,880,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		11,631,000		11,631,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		41,960,000		41,960,000
Goodwill, Acquired During Period				15,560,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		86,031,000		86,031,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities		7,189,000		7,189,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		7,189,000		7,189,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		78,842,000		78,842,000
Business Combination, Liabilities Arising from Contingencies, Amount Recognized						7,600,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low						$ 0
Business Combination, Contingent Consideration, Liability		11,900,000		11,900,000
Indefinite-Lived Trademarks		3,300,000		3,300,000
Finite-Lived Customer Relationships, Gross		37,200,000		37,200,000
Other Finite-Lived Intangible Assets, Gross		1,500,000		1,500,000
Business Acquisition, Pro Forma Revenue		260,072,000	$ 191,891,000	473,603,000	362,824,000
Business Acquisition, Pro Forma Depreciation, Amortization, and Accretion		28,979,000	27,197,000	56,397,000	54,949,000
Business Acquisition, Pro Forma Gross Profit		47,801,000	33,115,000	79,749,000	57,668,000
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax		(12,132,000)	(6,594,000)	(30,988,000)	(9,285,000)
Business Acquisition, Pro Forma Net Income (Loss)		(5,965,000)	$ (9,619,000)	(57,412,000)	$ (10,528,000)
Amortization of Intangible Assets				1,000,000
Business Acquisition, Transaction Costs		$ 400,000		400,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				36,600,000
Business Combination Pro Forma Information Depreciation And Amortization Of Acquirees Since Acquisition Date, Actual				2,100,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				$ 7,000,000
Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				5 years
Minimum [Member] | Machinery and Equipment [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				3 years
Minimum [Member] | Automobiles [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				3 years
Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				16 years
Maximum [Member] | Machinery and Equipment [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				15 years
Maximum [Member] | Automobiles [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				4 years
Working Capital [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability				$ 1,000,000