Note 11 - Borrowings and Financing Activities - Senior Notes due 2025 (Details) - Senior Notes - Senior Notes Due 2025 - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
May 31, 2020	Jun. 30, 2020
Debt Instrument, Face Amount	$ 525,000
Proceeds from Issuance of Long-term Debt	$ 515,600
Debt Instrument, Interest Rate, Stated Percentage	6.625%
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Basis Spread on Variable Rate		0.50%
Percent of Stock With Ordinary Voting Rights That Company Must Retain In Order To Make Any Capital Stock Transactions	80.00%

Percent of Stock With Ordinary Voting Rights That Company Must Retain In Order To Make Any Capital Stock Transactions

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

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

+ References

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- Definition

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

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- Definition

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

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