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Property and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Property and Equipment |  |
Total | $ 1,627,347 | $ 1,390,329
Less accumulated depreciation and amortization | 308,388 | 264,446
Property and equipment, net | 1,318,959 | 1,125,883
Land [Member] |  |
Property and Equipment |  |
Total | 482,600 | 400,163
Buildings [Member] |  |
Property and Equipment |  |
Total | $ 700,257 | 553,961
Buildings [Member] | Minimum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 25 |
Buildings [Member] | Maximum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 50 |
Leasehold improvements [Member] |  |
Property and Equipment |  |
Total | $ 172,071 | 170,060
Machinery and equipment [Member] |  |
Property and Equipment |  |
Total | $ 117,781 | 100,164
Machinery and equipment [Member] | Minimum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 7 |
Machinery and equipment [Member] | Maximum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 20 |
Furniture and fixtures [Member] |  |
Property and Equipment |  |
Total | $ 100,881 | 87,691
Furniture and fixtures [Member] | Minimum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 3 |
Furniture and fixtures [Member] | Maximum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 10 |
Company vehicles [Member] |  |
Property and Equipment |  |
Total | $ 11,933 | 11,632
Company vehicles [Member] | Minimum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 3 |
Company vehicles [Member] | Maximum [Member] |  |
Property and Equipment |  |
Property, Plant and Equipment, Estimated Useful Lives | 5 |
Construction in progress [Member] |  |
Property and Equipment |  |
Total | $ 41,824 | $ 66,658

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- 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 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223 + Details
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