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Property and Equipment - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment	$ 1,192,110	$ 1,154,223
Less accumulated depreciation and amortization	(241,954)	(231,939)
Property and equipment, net	950,156	922,284
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	160,357	160,126
Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	26,736	25,630
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	610,066	595,384
Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	120,542	117,460
Equipment under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	5,937	5,937
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	115,967	116,477
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	63,990	63,470
Internally Developed Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	37,303	36,173
Other [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,176	1,176
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 50,036	$ 32,390

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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+ References

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