Percentage price of original principal amount of debt at which debt has been issued.

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Percentage price of original principal amount of debt at which debt can be redeemed utilizing the net proceeds from specified equity offerings.

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The increased amount of a credit facility under new facility terms.

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Amount of call premiums paid in connection to the extinguishment of debt.

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No definition available.

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Represents the cash outflow associated with tender offer premiums.

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The amount of un-accredited net premiums that were recognized.

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- Definition

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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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

+ References

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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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 outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

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No definition available.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Note 3 - Long-term Debt (Details Textual) - USD ($)			3 Months Ended		9 Months Ended
Note 3 - Long-term Debt (Details Textual) - USD ($)	Sep. 14, 2016	Feb. 16, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jun. 14, 2016	Dec. 31, 2015
2014 Senior Credit Facility [Member]
Long-term Debt, Gross			$ 556,438,000		$ 556,438,000			$ 556,438,000
Debt Instrument, Interest Rate, Stated Percentage			3.90%		3.90%			3.80%
Line of Credit Facility, Increase		$ 10,000,000
Line of Credit Facility, Maximum Borrowing Capacity		60,000,000
2026 Notes [Member]
Debt Instrument, Interest Rate, Effective Percentage			5.875%		5.875%
Debt Instrument, Interest Rate, Stated Percentage			5.875%		5.875%
Debt Instrument, Face Amount							$ 500,000,000
Unsecured Debt			$ 700,000,000		$ 700,000,000
Debt Instrument, Redemption Price, Percentage					100.00%
Debt Instrument, Redemption Price, Net Proceeds from Equity Offerings, Percentage					35.00%
2024 Notes [Member]
Debt Instrument, Interest Rate, Effective Percentage			5.125%		5.125%
Debt Instrument, Interest Rate, Stated Percentage			5.125%		5.125%
Debt Instrument, Face Amount	$ 525,000,000
Unsecured Debt			$ 525,000,000		$ 525,000,000
Debt Instrument, Redemption Price, Percentage					100.00%
Debt Instrument, Redemption Price, Net Proceeds from Equity Offerings, Percentage					35.00%
2020 Notes [Member]
Gain (Loss) on Extinguishment of Debt			(32,000,000)		$ (32,000,000)
Extinguishment of Debt, Gain (Loss), Net of Tax			19,500,000		19,500,000
Debt Instrument, Face Amount	$ 431,200,000
Unsecured Debt								675,000,000
Debt Instrument, Redemption Price, Percentage	103.75%
Payments of Tender Offer Premiums					18,200,000
Payments for Debt Instrument, Debt Extinguishment, Call Premium					9,100,000
Write off of Deferred Debt Issuance Cost					8,000,000
Payments of Debt Extinguishment Costs					200,000
Un-accredited Net Premium, Recognized					$ 3,500,000
2016 Term Loan [Member]
Long-term Debt		$ 425,000,000
The Additional 2026 Notes [Member]
Debt Instrument, Interest Rate, Effective Percentage			5.398%		5.398%
Debt Instrument, Interest Rate, Stated Percentage			5.875%		5.875%
Debt Instrument, Face Amount	$ 200,000,000
Debt Instrument, Issueing Price, Percentage	103.00%
Proceeds from Issuance of Long-term Debt	$ 206,000,000
Gain (Loss) on Extinguishment of Debt			$ (31,987,000)		$ (31,987,000)
Long-term Debt			$ 1,800,000,000		1,800,000,000			$ 1,200,000,000
Proceeds from Issuance of Long-term Debt					$ 1,656,000,000	$ 0