Summarized Information Of Consolidated Revenues and Long Lived Tangible Assets Net Of Accumulated Depreciation (Detail) - USD ($) $ in Millions	3 Months Ended						12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 300.5	$ 338.6	$ 368.7	$ 137.8	$ 2.0	$ 0.1	$ 1,145.6	$ 2.1	$ 5.3
Property, plant and equipment, net	301.5				$ 0.1		301.5	$ 0.1
US Sub-facility
Segment Reporting Information [Line Items]
Revenues							545.2
Property, plant and equipment, net	167.9						167.9
Europe
Segment Reporting Information [Line Items]
Revenues							434.2
Property, plant and equipment, net	102.2						102.2
Canada and Mexico
Segment Reporting Information [Line Items]
Revenues							166.2
Property, plant and equipment, net	31.4						31.4
International
Segment Reporting Information [Line Items]
Revenues							600.4
Property, plant and equipment, net	$ 133.6						$ 133.6