Commitments and Contingencies - Commitments for Minimum Lease Payments Under Non Cancelable Operating Leases (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	$ 13,081
2015	9,419
2016	4,287
2017	3,568
2018	1,392
Thereafter	1,268
Minimum rental payments under operating leases	33,015
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	871
2015	615
2016	132
2017	70
2018	0
Thereafter	0
Minimum rental payments under capital leases	$ 1,688

Amount of minimum lease payments for capital leases.

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