Acquisitions (Details Textual) $ / shares in Units, $ in Thousands, $ in Millions				3 Months Ended	9 Months Ended	12 Months Ended
	Apr. 02, 2018 USD ($) shares	Apr. 02, 2018 CAD ($) shares	Feb. 28, 2018 USD ($) a Room shares	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017	Mar. 29, 2018 USD ($) $ / shares
Business Acquisition [Line Items]
Cash consideration, held in escrow	$ 11,607
Common share price (per share) | $ / shares							$ 3.77
Acquisition related transaction costs				$ 500	$ 7,000
Intangible assets aquired, remaining amortization period					16 years 170 days	3 years 36 days
Service and Other Costs
Business Acquisition [Line Items]
Acquisition related transaction costs				200	$ 300
Selling, General and Administrative Expenses
Business Acquisition [Line Items]
Acquisition related transaction costs				300	6,700
Noralta
Business Acquisition [Line Items]
Cash consideration	$ 161,200	$ 207.7
Cash consideration, held in escrow		$ 43.5
Shares issued (in shares) | shares	32,791,000	32,791,000
Shares issued, held in escrow, release related to Noralta customer contracts | shares	13,500,000	13,500,000
Escrow deposit disbursements	$ 3,600
Revenue of acquiree since acquisition date, actual				31,100	63,100
Earnings of acquiree since acquisition date, actual				$ 12,200	$ 25,600
Payments to acquire businesses, gross, held in escrow, released based on employee compensation costs	11,600
Business acquisitions, consideration transferred, total	315,550
Amortizable Intangible Assets	$ 114,383
Noralta | Contract-Based Intangible Assets
Business Acquisition [Line Items]
Amortization of intangible assets, estimated useful life	20 years	20 years
Amortizable Intangible Assets	$ 110,413
Noralta | Trade name
Business Acquisition [Line Items]
Amortization of intangible assets, estimated useful life	9 months	9 months
Amortizable Intangible Assets	$ 1,474
Noralta | Unfavorable Lease Contracts | Minimum
Business Acquisition [Line Items]
Amortization of intangible assets, estimated useful life	3 years 292 days	3 years 292 days
Noralta | Unfavorable Lease Contracts | Maximum
Business Acquisition [Line Items]
Amortization of intangible assets, estimated useful life	9 years 109 days	9 years 109 days
Noralta | Common Shares
Business Acquisition [Line Items]
Common share consideration	$ 123,622
Shares issued, held in escrow, release based on employee compensation cost increases | shares	2,400,000	2,400,000
Noralta | Preferred shares
Business Acquisition [Line Items]
Common share consideration	$ 59,042
Shares issued, held in escrow, release based on employee compensation cost increases | shares	692	692
Noralta | Preferred shares | Series A preferred stock
Business Acquisition [Line Items]
Shares issued (in shares) | shares	9,679	9,679
Shares issued, held in escrow, release based on employee compensation cost increases | shares	692	692
Beneficial conversion feature	$ 47,800
Noralta | Preferred shares | Class A Series 1 Preferred Stock
Business Acquisition [Line Items]
Liquidation preference amount, Preferred shares	96,800						$ 96,790
Equity interest issued, liquidation preference, percent							61.00%
Beneficial conversion feature	$ 47,800
Lakeland
Business Acquisition [Line Items]
Cash consideration			$ 23,500
Common share consideration			$ 4,500
Shares issued (in shares) | shares			1,200,000
Business acquisitions, consideration transferred, total			$ 28,000
Number of rooms | Room			400
Area of land | a			40
Amortizable Intangible Assets			$ 8,200
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			16 months