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Property and Equipment - Components of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Property, Plant and Equipment [Line Items] |  |
Total, at cost | $ 1,006,147 | $ 844,652
Less accumulated depreciation | (300,035) | (249,528)
Subtotal | 706,112 | 595,124
Less assets held for sale | (4,101) |
Property and Equipment, net | 702,011 | 595,124
Land [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | 194,639 | 142,730
Building and Improvements [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | 569,619 | 476,846
Office Equipment and Fixtures [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | 135,221 | 115,509
Parts and Service Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | 70,950 | 62,678
Company Vehicles [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | 8,002 | 7,750
Construction in Progress [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Total, at cost | $ 27,716 | $ 39,139

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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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 14 -Article 5 + Details
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- Definition Property, plant and equipment that is held for sale apart from normal operations and anticipated to be sold in less than one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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