Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Taxes [Abstract]

Schedule Of Income Tax Expense

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

	Year Ended December 31,
	2019		2018		2017
Current	$	(2,177)	$	7,758	$	(43,705)
Deferred		(18,881)		(24,484)		(81,077)
Total		(21,058)		(16,726)		(124,782)
Less: Income tax expense - discontinued operations		258		3,421		7,279
Income tax benefit - continuing operations	$	(21,316)	$	(20,147)	$	(132,061)

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,
	2019		2018		2017
Tax expense at federal statutory rate	$	(36,317)	$	1,060	$	(19,400)
State income tax expense, net of federal benefit		(7,839)		702		(1,159)
Nondeductible compensation		762		921		222
Noncontrolling interests		(3,961)		(4,370)		(7,199)
Unrecognized tax benefits		36		15,148		25,720
R&D credits		(323)		(34,979)		(74,033)
Increase in valuation allowance		25,314		-		-
Disposition of subsidiary		(373)		(1,022)		-
Tax Cuts and Jobs Act impact		-		278		(57,223)
Stock compensation		369		993		-
Audit adjustments		-		559		-
Amended return adjustments		-		374		-
Other		1,016		189		1,011
Income tax benefit	$	(21,316)	$	(20,147)	$	(132,061)

Schedule Of Significant Components Of Deferred Tax Assets And Liabilities

		Year Ended December 31,
	2019		2018		2017
Tax expense at federal statutory rate	$	(36,317)	$	1,060	$	(19,400)
State income tax expense, net of federal benefit		(7,839)		702		(1,159)
Nondeductible compensation		762		921		222
Noncontrolling interests		(3,961)		(4,370)		(7,199)
Unrecognized tax benefits		36		15,148		25,720
R&D credits		(323)		(34,979)		(74,033)
Increase in valuation allowance		25,314		-		-
Disposition of subsidiary		(373)		(1,022)		-
Tax Cuts and Jobs Act impact		-		278		(57,223)
Stock compensation		369		993		-
Audit adjustments		-		559		-
Amended return adjustments		-		374		-
Other		1,016		189		1,011
Income tax benefit	$	(21,316)	$	(20,147)	$	(132,061)

‎

Significant components of deferred tax assets and liabilities are as follows (in thousands):

	December 31,
	2019		2018
Deferred tax assets:
Net operating loss carryforwards - Federal	$	27,935	$	-
Net operating loss carryforwards - State		8,788		4,004
Tax credit carryforwards - Federal		49,937		47,956
Tax credit carryforwards - State		7,750		9,369
Derivative financial instruments		342		-
Deferred revenue		795		2,236
Interest expense carryforward		5,539		2,048
Investment in partnerships		46,774		50,009
Inventory valuation		1,560		3,603
Stock-based compensation		1,347		1,458
Accrued expenses		4,325		5,439
Leases		6,993		2,516
Other		51		43
Total		162,136		128,681
Valuation allowance		(33,337)		(7,413)
Total deferred tax assets		128,799		121,268
Deferred tax liabilities:
Convertible debt		(12,266)		(7,508)
Fixed assets		(107,909)		(118,330)
Derivative financial instruments		-		(1,573)
Organizational and start-up costs		(4,484)		(3,980)
Right-of-use assets		(4,140)		-
Total deferred tax liabilities		(128,799)		(131,391)
Deferred income taxes	$	-	$	(10,123)

Reconciliation Of The Beginning And Ending Amounts Of Unrecognized Tax Benefits

Unrecognized Tax Benefits
Balance at January 1, 2019	$	51,558
Additions for prior year tax positions		6
Additions for current year tax positions		32
Balance at December 31, 2019	$	51,596