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Note 17 - Redeemable Non-controlling Interests - Reconciliation of the Beginning and Ending NCI Amounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 442,375	$ 359,150
RNCI redemption increment	99,316	15,843
Distributions paid to RNCI	(51,508)	(35,698)
Purchase of interests from RNCI	(24,371)	(25,639)
Sale of interests to RNCI	18,012	6,539
Balance	536,903	442,375
Non-controlling Interest Share of Earnings [Member]
RNCI share of earnings	50,739	27,550
Non-controlling Interest Redemption Increment [Member]
RNCI redemption increment	99,316	15,843
Non-controlling Interest Distributions Paid to NCI [Member]
Distributions paid to RNCI	(49,168)	(33,293)
Non-controlling Interest Recognized on Business Acquisitions [Member]
RNCI recognized on business acquisitions	$ 0	$ 92,225

X

- Definition

This element represents the fair value of the noncontrolling interest recognized in the acquiree during the fiscal period.

+ References

No definition available.

+ Details

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X

- Definition

The cash outflow (inflow) during the period for redemption (purchase) of redeemable noncontrolling interests.

+ References

No definition available.

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X

- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.

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X

- Definition

Portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent entity which is not redeemable by the parent entity.

+ References

No definition available.

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- Definition

Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.

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- Definition

Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.

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