Commitments and Contingencies - Minimum Aggregate Lease Payments (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Leases [Abstract]
Gross Rents, 2014	$ 21,759
Gross Rents, 2015	21,903
Gross Rents, 2016	21,401
Gross Rents, 2017	20,843
Gross Rents, 2018	20,851
Gross Rents, Thereafter	271,895
Gross Rents, Total lease commitments	378,652
Sublease Rents, 2014	2,040
Sublease Rents, 2015	1,957
Sublease Rents, 2016	1,803
Sublease Rents, 2017	1,781
Sublease Rents, 2018	1,549
Sublease Rents, Thereafter	6,005
Sublease Rents, Total lease commitments	15,135
Net Rents, 2014	19,719
Net Rents, 2015	19,946
Net Rents, 2016	19,598
Net Rents, 2017	19,062
Net Rents, 2018	19,302
Net Rents, Thereafter	265,890
Net Rents, Total lease commitments	$ 363,517