Commitments and Contingencies - Legal Matters - Additional Information (Detail)	3 Months Ended		171 Months Ended
	Mar. 31, 2016 USD ($) Case	Sep. 30, 2014 USD ($)	Mar. 31, 2016 USD ($) Case	Dec. 31, 2015 Case
Commitments And Contingencies Disclosure [Abstract]
Cumulative settlement payments for cases involving asbestos-related claims | $		$ 500,000	$ 900,000
Average cost per settled claim excluding legal fees | $	$ 25,000		$ 25,000
Number of claims pending	238		238	221
Number of new cases filed	21
Number of cases dismissed	4
Number of cases settled	0
Settlement recovering expense | $		$ 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.