Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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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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Face (par) amount of the original debt instrument that was repurchased.

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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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The cash inflow from a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

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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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Note 11 - Long-Term Debt Schedule of Long Term Debt (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended
	Jan. 27, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt		$ 989,010			$ 989,010		$ 1,069,537
Loss on induced conversion and debt extinguishment		$ (1,247)		$ (2,108)	(5,703)	$ (57,678)
Proceeds from termination of capped calls					$ 4,083	$ 0
Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.00%			3.00%
Long-term debt		$ 625			$ 625		20,947
Repayments of Convertible Debt		$ 31,600
Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount			$ 68,000
Debt Instrument, Interest Rate, Stated Percentage		2.25%			2.25%
Long-term debt		$ 0			$ 0		62,013
Debt Instrument, Convertible, Conversion Price		$ 10.60			$ 10.60
Repayments of Convertible Debt	$ 110,100
Loss on induced conversion and debt extinguishment	$ (4,500)		$ (4,500)
Senior Notes Due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.50%			5.50%
Long-term debt		$ 297,510			$ 297,510		296,907
Senior Notes Due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.25%			5.25%
Long-term debt		$ 345,932			$ 345,932		345,308
Senior Notes Due 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.00%			7.00%
Long-term debt		$ 344,943			$ 344,943		344,362
Convertible Debt \| Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount		21,600			21,600
Long-term debt		625			625		20,947
Loss on induced conversion and debt extinguishment		(1,200)
Long-term Debt, Gross		642			642		22,233
Convertible Debt \| Convertible Senior Notes Due 2019
Debt Instrument [Line Items]
Long-term debt		0			0		62,013
Long-term Debt, Gross		$ 0			$ 0		$ 68,024