The bank credit agreement includes both the term loan and bank credit facility.

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

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Term Loan, Maximum Borrowing Capacity

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No definition available.

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- Definition

The increase during the period in capital lease obligations due to entering into new capital leases.

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-Name Accounting Standards Codification
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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.

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No definition available.

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Amount of the required periodic payments including both interest and principal payments.

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- Definition

Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

The fair value as of the balance sheet date of financial instruments and other positions owned by the entity and pledged to counterparties as collateral, including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

The total amount due within more than 12 month, or the operating cycle if longer, on all notes payable to banks paid on an installment. This can include the amount of any loans from the applicant firm. This does not, however, include any mortgage balances.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

+ References

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- Definition

The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

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- Definition

The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 15
-Subparagraph (b)
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- Definition

Amount of cash outflow for the payment of debt classified as other.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt Debt, Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
Debt Debt, Textuals (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Feb. 12, 2018	Mar. 31, 2017
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.73%	4.68%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	75.00%	63.00%
Notes Payable to Bank, Noncurrent		$ 0
Line of Credit Facility, Amount Outstanding	$ 1,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Letters of Credit, Maximum Borrowing Capacity	$ 33,300				$ 100,000
Line of Credit Facility, Remaining Borrowing Capacity	966,700
Principal payments on capital leases	51,106	33,119	$ 28,601
Repayments of Other Debt	200
Repayments of Debt	1,600,000	911,500
Losses on early extinguishment of debt, net	274	22,503	6,918
Capital Lease Obligations Incurred	54,087	41,609	$ 55,941
Pledged Assets Separately Reported, Finance Receivables Pledged as Collateral, at Fair Value	3,700	4,700
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position	1,200	1,400
Senior Notes	550,000	0
Long-term Debt, Fair Value	3,440,052	3,240,560
Bank Credit Agreement	1,700,000
Term Loan, Maximum Borrowing Capacity	700,000
Debt Issuance Costs, Line of Credit Arrangements, Net	12,900
Borrowings on Bank Credit Facility	562,500
July 2018 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	0	350,000
Repayments of Debt	310,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayments of Debt	280,000
June 2017 [Member]
Debt Instrument [Line Items]
Repayments of Debt	295,000
March 2021 [Member]
Debt Instrument [Line Items]
Notes Payable to Bank, Noncurrent	0	673,750
Repayments of Debt	647,500
Debt Instrument, Periodic Payment	26,300
Bank Credit Facility due March 2021 [Domain]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	0	350,000
Repayments of Debt	470,000
Bank Credit Facility due March 2022 [Member]
Debt Instrument [Line Items]
Repayments of Debt	442,500
Unsecured Debt [Member] \| October 2018 [Member]
Debt Instrument [Line Items]
Senior Notes	250,000	250,000
Unsecured Debt [Member] \| May 2019 [Member]
Debt Instrument [Line Items]
Senior Notes	200,000	200,000
Unsecured Debt [Member] \| November 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	150,000	150,000
Unsecured Debt [Member] \| April 2027 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 200,000	$ 200,000
Subsequent Event [Member]
Debt Instrument [Line Items]
Borrowings on Bank Credit Facility				$ 175,000