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Goodwill and Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets | $ 33,331 | $ 33,367
Less accumulated amortization | (22,893) | (21,559)
Intangible assets, net | 10,438 | 11,808
Covenants Not-to-Compete [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets | 17,266 | 17,296
Less accumulated amortization | (15,957) | (15,730)
Intangible assets, net | 1,309 | 1,566
Client Lists [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets | 16,065 | 16,071
Less accumulated amortization | (6,936) | (5,829)
Intangible assets, net | $ 9,129 | $ 10,242

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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