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Debt - Schedule of Debt (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Aug. 12, 2014
Debt Instrument [Line Items]
Face amount of debt	$ 1,127,750,000	$ 259,000,000
Unamortized debt issuance costs	(23,709,000)	(3,709,000)
Total debt, carrying value	1,104,041,000	255,291,000
Total short term debt, carrying value	877,043,000	29,000,000
Total long-term debt, carrying value	226,998,000	226,291,000
Amended Credit Facility
Debt Instrument [Line Items]
Credit agreement	897,750,000	29,000,000
2019 Notes
Debt Instrument [Line Items]
Face amount of debt	230,000,000	230,000,000	$ 230,000,000.0
Unamortized debt issuance costs	(3,002,000)	(3,709,000)
Total debt, carrying value	217,400,000
Total long-term debt, carrying value	$ 226,998,000	$ 226,291,000

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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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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- Definition

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

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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, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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