Significant Accounting Policies - Expected Useful Lives of Property, Plant and Equipment Recorded at Cost and Depreciated or Amortized (Detail)	12 Months Ended
	Dec. 31, 2014
Minimum [Member] | Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	10 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	5 years
Minimum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	5 years
Minimum [Member] | Molds, Cores and Rings [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	4 years
Maximum [Member] | Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	40 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	14 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	10 years
Maximum [Member] | Molds, Cores and Rings [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment useful life	10 years