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, 2014
Commitments and Contingencies Disclosure [Abstract]
Capital Leases, 2015	$ 409
Capital Leases, 2016	46
Capital Leases, 2017	46
Capital Leases, 2018	46
Capital Leases, 2019	46
Capital Leases, Years thereafter	842
Capital Leases, Total minimum lease payments	1,435
Capital Leases, Less amount representing interest	(380)
Capital Leases, Total present value of minimum payments	1,055
Capital Leases, Total present value of minimum payments	1,055
Capital Leases, Less current portion of obligations	(377)
Capital Leases, Long-term obligations	678
Operating Leases, 2015	5,097
Operating Leases, 2016	4,704
Operating Leases, 2017	4,279
Operating Leases, 2018	4,348
Operating Leases, 2019	4,579
Operating Leases, Years thereafter	604,801
Operating Leases, Total minimum lease payments	$ 627,808