Commitments and Contingencies (Additional Information) (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	1 Months Ended		12 Months Ended
	Mar. 17, 2010	Dec. 31, 2007	Dec. 31, 2007 Polyone	Dec. 31, 2012 Polyone
Commitments and Contingencies Disclosure [Line Items]
Minimum number of years between arbitrations		5 years
Reimbursement of remediation costs sought by PolyOne	$ 1,400
Percentage of costs related to environmental issues to be paid by PolyOne			100.00%
Costs incurred environmental remediation services				$ 2,687