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Segments and Related Information (Reconciliation of EBITDA to Consolidated Income) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Less: |  |  |
Interest expense, net | $ (46,442,000) | $ (37,376,000) | $ (34,466,000)
Depreciation and amortization | (140,928,000) | (92,601,000) | (75,228,000)
Income from continuing operations before income taxes | 240,214,000 | 192,719,000 | 159,280,000
Continuing Operations [Member] |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
EBITDA | 427,600,000 | 322,100,000 | 267,900,000
Less: |  |  |
Interest expense, net | (46,400,000) | (37,400,000) | (34,500,000)
Depreciation and amortization | $ (140,926,000) | $ (91,958,000) | $ (74,151,000)

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
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