Property and Equipment - Summary of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 470,719	$ 473,865
Accumulated depreciation	(281,119)	(276,567)
Property and equipment, net	189,600	197,298
Land and Land Interests [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	23,951	26,124
Building and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	137,932	137,293
Equipment and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 308,836	$ 310,448