The price per share of the conversion feature embedded in the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash outflow from the repayment of a long-term debt instrument which 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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Note 11 - Long-Term Debt Schedule of Long Term Debt (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jan. 27, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt		$ 1,008,777		$ 1,069,537
Loss on induced conversion and debt extinguishment		$ (4,456)	$ (55,570)
Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.00%
Long-term debt		$ 21,303		20,947
Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.25%
Long-term debt		$ 0		62,013
Debt Instrument, Convertible, Conversion Price		$ 10.60
Repayments of Convertible Debt	$ 110,100
Loss on induced conversion and debt extinguishment	$ 4,500
Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.50%
Long-term debt		$ 297,206		296,907
Senior Notes Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.25%
Long-term debt		$ 345,618		345,308
Senior Notes Due 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.00%
Long-term debt		$ 344,650		344,362
Convertible Debt \| Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Long-term debt		21,303		20,947
Convertible Debt \| Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Long-term debt		$ 0		$ 62,013