Convertible note hedge shares

No definition available.

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- Definition

gain/loss convertible debt hedge asset and note obligation valuation

+ References

No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&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

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&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

No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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Derivative Instruments (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Jun. 28, 2019	Sep. 25, 2017
Derivative [Line Items]
Pre-tax (charge) on derivative instruments	$ 4,500	$ (885)
Net (gain) loss on financial instruments			$ 3,754	$ (2,343)
gain/loss convertible debt hedge asset and note obligation valuation			(200)
June 30, 2017 [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	2.706%
Market Value (Liability)	$ (2,008)		(1,138)
Derivative Liability, Notional Amount	$ 149,063		150,000
May 5, 2021 [Member] [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (472)		(650)
Derivative Liability, Notional Amount	$ 26,250		28,125
May 30, 2021 [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (231)		(366)
Derivative Liability, Notional Amount	$ 26,250		28,125
March 31, 2022 One [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (392)		(829)
Derivative Liability, Notional Amount	$ 50,000		50,000
March 31, 2022 Two [Member] [Member] [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	0.00%
Market Value (Liability)	$ (481)		(1,126)
Derivative Liability, Notional Amount	$ 75,000		75,000
March 31, 2023 [Member] \| Swap [Member]
Derivative [Line Items]
Stated Interest Rate	2.4245%
Market Value (Liability)	$ 1,489		0
Derivative Liability, Notional Amount	$ 150,000		$ 0		$ 150,000
Convertible Debt [Member]
Derivative [Line Items]
Convertible note hedge shares						8,111