Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Apr. 10, 2013 A.M. Holdings S.A.S (AIXAM)
Intangible Assets and Goodwill [Line Items]
Goodwill	$ 120,870	$ 120,870	$ 56,324
Total other intangible assets, net	102,667	102,667	50,892
Acquisition cost				141,189
Acquisition cost, net of cash acquired				134,817
Amortization expense of intangible assets	2,574	3,652
Estimated Future Amortization Expense by Fiscal Year [Abstract]
Remainder of 2013	5,090	5,090
2014	10,180	10,180
2015	10,180	10,180
2016	10,156	10,156
2017	9,847	9,847
2018	8,399	8,399
After 2018	$ 8,458	$ 8,458