Convertible note hedge shares

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- Definition

gain/loss convertible debt hedge asset and note obligation valuation

+ References

No definition available.

+ Details

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959

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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.

+ References

No definition available.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

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- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ 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=98514028&loc=d3e3602-108585

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Derivative Instruments (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 25, 2017	Jul. 14, 2017	Apr. 20, 2017	Feb. 07, 2017
Derivative [Line Items]
Pre-tax (charge) on derivative instruments	$ (79,789)	$ (18,107)	$ 920
Net (gain) loss on financial instruments	(1,370)	(969)	$ (920)
gain/loss convertible debt hedge asset and note obligation valuation	$ 600
May 30, 2021 [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (240)	0
Derivative Liability, Notional Amount	$ 35,625	0					$ 39,375
June 30, 2017 [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	1.1825%
Market Value (Liability)	$ 0	(77)
Derivative Liability, Notional Amount	$ 0	43,125
May 5, 2021 [Member] [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (719)	(547)
Derivative Liability, Notional Amount	$ 35,625	43,125
March 31, 2022 One [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (416)	0
Derivative Liability, Notional Amount	$ 50,000	0				$ 50,000
March 31, 2022 Two [Member] [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (465)	0
Derivative Liability, Notional Amount	$ 75,000	$ 0			$ 75,000
Convertible Debt [Member]
Derivative [Line Items]
Convertible note hedge shares				8,111