Operating Results of Segments and Reconciliations to Loss Before Income taxes (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 304,500,000	$ 314,900,000	$ 320,900,000	$ 309,400,000	$ 300,500,000	$ 338,600,000	$ 368,700,000	$ 137,800,000	$ 1,249,700,000	$ 1,145,600,000	$ 2,100,000
Unrealized gains (losses) on derivative financial instruments									1,000,000	(800,000)	0
Segment depreciation and amortization									(48,600,000)	(32,500,000)	(100,000)
Amortization of inventories and supplies purchase accounting adjustments									(1,100,000)	(9,200,000)	0
Selling, general and administrative expenses									(61,000,000)	(56,000,000)	(10,000,000)
Goodwill impairment	(61,800,000)								(61,800,000)	0	0
Other, net									(6,700,000)	(3,700,000)
Operating profit (loss)	$ (67,200,000)	$ (3,500,000)	$ 8,100,000	$ (2,100,000)	$ 2,800,000	$ 7,400,000	$ 2,800,000	$ (2,800,000)	(64,700,000)	10,200,000	(8,400,000)
Interest expense, net									(37,300,000)	(34,900,000)	100,000
Change in fair value of common stock warrant liability									2,400,000	(1,500,000)	3,700,000
Acquisition-related costs and expenses									(1,000,000)	(14,800,000)	(3,400,000)
Foreign exchange losses on intercompany loans									(2,400,000)	(1,300,000)	0
Loss from equity method investment									(1,100,000)	0	0
Other nonoperating income, net									300,000	1,500,000	(500,000)
Income tax benefit									600,000	9,100,000	8,400,000
Earnings from discontinued operations, net of income taxes									600,000	24,900,000	5,500,000
Net earnings (loss)									(102,600,000)	(6,800,000)	$ 5,400,000
Operating Segments
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA									67,900,000	70,300,000
Unrealized gains (losses) on derivative financial instruments									1,000,000	(800,000)
Segment depreciation and amortization									(48,500,000)	(32,500,000)
Amortization of inventories and supplies purchase accounting adjustments									(1,100,000)	(9,200,000)
RANA
Segment Reporting Information [Line Items]
Goodwill impairment									(61,800,000)
RANA | Operating Segments
Segment Reporting Information [Line Items]
Revenues									821,000,000	711,400,000
Segment Adjusted EBITDA									44,000,000	49,000,000
RAEU | Operating Segments
Segment Reporting Information [Line Items]
Revenues									428,600,000	434,200,000
Segment Adjusted EBITDA									23,900,000	21,300,000
Corporate and Other
Segment Reporting Information [Line Items]
Revenues									100,000	0
Segment Adjusted EBITDA									0	0
Selling, general and administrative expenses									$ (15,500,000)	$ (13,900,000)