Commitments and Contingencies - Future Minimum Cash Lease Commitments Under All Non-Cancelable Leases in Effect for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]
Capital Operating Leases, 2013	$ 623
Capital Operating Leases, 2014	364
Capital Operating Leases, 2015
Capital Operating Leases, 2016
Capital Operating Leases, 2017
Capital Operating Leases, Years thereafter
Capital Operating Leases, Total minimum lease payments	987
Capital Operating Leases, Less amount representing interest	(29)
Capital Operating Leases, Total present value of minimum payments	958
Capital Operating Leases, Less current portion of obligations	(599)
Capital Operating Leases, Long-term obligations	359
Operating Leases, 2013	6,230
Operating Leases, 2014	5,502
Operating Leases, 2015	4,637
Operating Leases, 2016	4,279
Operating Leases, 2017	4,348
Operating Leases, Years thereafter	609,380
Operating Leases, Total minimum lease payments	$ 634,376