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Amortizable Intangible Assets - Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | $ 1,444,729 |  | $ 1,428,426
Accumulated Amortization | (705,174) |  | (683,746)
Net Carrying Value | 739,555 |  | 744,680
Purchased customer accounts |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 1,415,155 |  | 1,398,986
Accumulated Amortization | (677,933) |  | (656,799)
Net Carrying Value | $ 737,222 |  | 742,187
Weighted Average Life (Years) | 15 years | 15 years |
Non-compete agreements |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | $ 29,574 |  | 29,440
Accumulated Amortization | (27,241) |  | (26,947)
Net Carrying Value | $ 2,333 |  | $ 2,493
Weighted Average Life (Years) | 6 years 9 months 18 days | 6 years 9 months 18 days |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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=66006027&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=66006027&loc=d3e16323-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Details
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