Contingent cash interest accrual rate

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- Definition

Debt to EBITDA (Leverage) Ratio

+ References

No definition available.

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- Definition

The number of trading days used to determine the average market price of zero-coupon subordinated notes used to calculate the contingent cash interest rate.

+ References

No definition available.

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- Definition

Senior Notes current 2015

+ References

No definition available.

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- Definition

Senior notes current 2016

+ References

No definition available.

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- Definition

Short term debt issuance costs

+ References

No definition available.

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- Definition

Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

+ 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 FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-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 840
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45023-112735

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- Definition

The portion of the carrying value of convertible subordinated debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment upon liquidation of the entity's assets.

+ 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 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ 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 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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Debt - Convertible Subordinated Notes (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2017	Dec. 31, 2016 USD ($)	Feb. 18, 2015
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months			$ 541.1
Convertible Subordinated Debt, Current	$ 94.5		42.4
Senior Notes current 2015	325.0		0.0
Short term debt issuance costs	(1.0)		(1.3)
Capital Lease Obligations, Current	5.4		8.4
Debt, Current	423.9		549.5
Senior notes current 2016	$ 0.0		$ 500.0
Zero-coupon convertible subordinated notes [Member]
Debt Instrument [Line Items]
Contingent cash interest accrual rate	0.125%
Number of days used to establish average market price of zero coupon subordinated notes	5
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt to EBITDA (leverage) ratio	3,100,000
Maximum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt to EBITDA (leverage) ratio	4.75		4.25	3.75
Maximum [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Debt to EBITDA (leverage) ratio		3.75