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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Taxes [Abstract]

Schedule Of Income Tax Expense

Income tax expense (benefit) consists of the following (in thousands):

		Year Ended December 31,
		2020			2019			2018
Current		$	(37,047)		$	(2,177)		$	7,758
Deferred			(13,336)			(18,881)			(24,484)
Total			(50,383)			(21,058)			(16,726)
Less: Income tax expense - discontinued operations			-			258			3,421
Income tax benefit - continuing operations		$	(50,383)		$	(21,316)		$	(20,147)

Schedule Of Differences Between The Income Tax Expense (Benefit)Computed At The Statutory Federal income Tax Rate And As Presented On The Consolidated Statements Of Operations

		Year Ended December 31,
	2020			2019			2018
Tax expense at federal statutory rate	$	(33,698)		$	(36,317)		$	1,060
State income tax expense, net of federal benefit		(802)			(7,839)			702
Nondeductible compensation		421			762			921
Noncontrolling interests		(4,015)			(3,961)			(4,370)
Unrecognized tax benefits		(28)			36			15,148
R&D credits		-			(323)			(34,979)
Increase in valuation allowance		6,279			25,314			-
Disposition of subsidiary		-			(373)			(1,022)
Tax Cuts and Jobs Act impact		-			-			278
Stock compensation		721			369			993
Audit adjustments		-			-			559
Amended return adjustments		(19,786)			-			374
Other		525			1,016			189
Income tax benefit	$	(50,383)		$	(21,316)		$	(20,147)

Schedule Of Significant Components Of Deferred Tax Assets And Liabilities

	December 31,
	2020			2019
Deferred tax assets:
Net operating loss carryforwards - Federal	$	11,670		$	27,935
Net operating loss carryforwards - State		10,875			8,788
Tax credit carryforwards - Federal		64,081			49,937
Tax credit carryforwards - State		7,369			7,750
Derivative financial instruments		-			342
Deferred revenue		149			795
Interest expense carryforward		6,609			5,539
Investment in partnerships		45,519			46,774
Inventory valuation		290			1,560
Stock-based compensation		1,439			1,347
Accrued expenses		5,351			4,325
Leases		7,958			6,993
Organizational and start-up costs		1,047			-
Other		337			51
Total		162,694			162,136
Valuation allowance		(43,336)			(33,337)
Total deferred tax assets		119,358			128,799
Deferred tax liabilities:
Convertible debt		(9,154)			(12,266)
Fixed assets		(104,364)			(107,909)
Derivative financial instruments		(724)			-
Organizational and start-up costs		-			(4,484)
Right-of-use assets		(5,116)			(4,140)
Total deferred tax liabilities		(119,358)			(128,799)
Deferred income taxes	$	-		$	-

Reconciliation Of The Beginning And Ending Amounts Of Unrecognized Tax Benefits

Unrecognized Tax Benefits
Balance at January 1, 2020	$	51,596
Additions for prior year tax positions		27
Additions for current year tax positions		(54)
Balance at December 31, 2020	$	51,569

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.

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