Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Cases	Dec. 31, 2012 Cases
Loss Contingencies [Line Items]
Cumulative settlement payments for cases involving asbestos-related claims	$ 700,000
Average cost per settled claim excluding legal fees	25,000
Number of claims pending	173	153
Number of new cases filed	48
Number of cases dismissed	32
Number of cases settled	0
Legal reserve expense amount	3,500,000
Plaintiffs claim to have suffered property damages and other loss	75,000,000
Settlement reserve	200,000
Assessment regarding Loss contingency impact Description	We are not aware of pending claims or assessments, other than as described above, which may have a material adverse impact on our liquidity, financial position, results of operations, or cash flows.
Maximum [Member]
Loss Contingencies [Line Items]
Payment for attorneys fees and reimbursement	$ 200,000