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Property and Equipment - Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Property Plant And Equipment [Line Items]    
Gross property and equipment $ 544,525 $ 435,370
Accumulated depreciation (264,667) (246,131)
Property and equipment, net 279,858 189,239
Land and land interests    
Property Plant And Equipment [Line Items]    
Gross property and equipment [1] 31,670 29,032
Buildings and leasehold improvements    
Property Plant And Equipment [Line Items]    
Gross property and equipment 185,987 135,381
Equipment and other    
Property Plant And Equipment [Line Items]    
Gross property and equipment [2] $ 326,868 $ 270,957
[1] Land and land interests include certain leasehold interests in land within Pursuit for which the Company is considered to have perpetual use rights. As of December 31, 2016 and 2015, the carrying amount of these leasehold interests was $7.9 million and $7.7 million, respectively. These land interests are not subject to amortization.
[2] Equipment and other includes capitalized costs incurred in developing or obtaining internal and external use software. As of December 31, 2016 and 2015, the net carrying amount of capitalized software was $11.9 million and $12.3 million, respectively.