Significant Accounting Policies - Schedule of Useful Life of Plant and Property (Detail)	12 Months Ended
	Dec. 31, 2013
Buildings and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	30 years
Buildings and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	15 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	30 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	15 years
Assets Under Capital Leases [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	25 years
Assets Under Capital Leases [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	11 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	15 years
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of assets	5 years