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Debt (Schedule of Carrying Values of Debt) (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |
Capital lease obligations | $ 148,100 | $ 176,500
Total debt | 1,177,400 | 1,134,800
Less current maturities | (78,827) | (73,631)
Long-term debt | $ 1,098,585 | 1,061,159
Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility, maturity date | Oct. 29, 2018 |
Credit Facility [Member] | Revolving Loans [Member] |  |
Debt Instrument [Line Items] |  |
Carrying value of debt | $ 349,300 | 282,700
Credit Facility [Member] | Term Loan [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility, maturity date | Nov. 21, 2019 |
Carrying value of debt | $ 250,000 | 250,000
Senior Notes [Member] | 4.875% Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Mar. 15, 2023 |
Carrying value of debt | $ 400,000 | 400,000
Other Credit Facilities [Member] |  |
Debt Instrument [Line Items] |  |
Carrying value of debt | $ 9,500 | 1,200
Capital Lease Obligations [Member] |  |
Debt Instrument [Line Items] |  |
Capital lease obligations, expiration date, range, end | Jun. 13, 2021 |
Notes Payable [Member] | Equipment [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable, maturity date, range, end | Jun. 30, 2018 |
Carrying value of debt | $ 20,500 | $ 24,400

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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