Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Taxes [Abstract]

Components Of Income Before Income Taxes

	2017		2016		2015
Income (loss) before income taxes:
Domestic	$	(75,965)	$	(53,868)	$	(580,720)
Foreign		18,444		14,056		(74,233)
Total	$	(57,521)	$	(39,812)	$	(654,953)

Components Of Income Tax Provision

	2017		2016		2015
Current:
U.S. federal	$	(83)	$	(2,110)	$	10,753
State		741		30		169
Foreign		12,711		8,099		925
Total		13,369		6,019		11,847
Deferred:
U.S. federal		—		(1,245)		(5,252)
State		1,097		—		(225)
Foreign		(6,664)		(5,321)		2,602
Total		(5,567)		(6,566)		(2,875)
Total income tax (benefit) provision	$	7,802	$	(547)	$	8,972

Schedule Of Effective Tax Rate Reconciliation

	% of Pretax Income
	2017			2016			2015
Tax provision based on the federal statutory rate		35.0	%		35.0	%		35.0	%
Increase in valuation allowances		48.8			(58.5)			(16.4)
Other		2.9			1.7			(0.4)
Foreign tax rate change		2.2
Return to provision adjustments		2.0			18.8			(0.7)
State taxes, net of federal benefit, before valuation allowance		1.0			3.9			0.9
Deferred tax adjustments		(1.1)			13.0			—
Uncertain tax positions		(1.4)			(25.1)			(0.5)
Nondeductible expenses		(3.3)			(1.1)			(0.1)
Deemed income related to foreign operations		(4.1)			(8.4)			(0.6)
Employee share-based payments		(13.2)			—			—
One-Time transition tax		(16.5)			—			—
U.S. Tax Cuts and Jobs Act - rate change		(65.9)			—			—
Foreign exchange loss		—			9.4			—
Impairment of definite lived intangibles		—			3.1			—
Foreign income tax rate differential		—			3.1			(2.0)
Impairment of goodwill with no tax basis		—			—			(16.8)
Foreign tax credits related to above		—			6.5			0.2
Effective tax rate		(13.6)	%		1.4	%		(1.4)	%

Components Of Net Deferred Income Tax Assets And Net Deferred Income Tax Liabilities

(in thousands)	2017		2016
Deferred income tax assets:
Intangibles	$	24,232	$	40,014
Stock options and restricted stock awards		5,988		14,384
Reserves and allowances		11,308		20,022
Net operating loss carryforwards		35,004		29,398
Tax credit carryforwards		10,908		13,571
Accrued liabilities		3,011		5,330
Deferred revenue		4,629		3,502
Valuation allowance		(80,796)		(109,913)
Total deferred income tax assets		14,284		16,308
Deferred income tax liabilities:
Intangibles		11,301		16,968
Property, plant and equipment		7,304		8,818
Other		642		—
Total deferred income tax liabilities		19,247		25,786
Net deferred income tax liabilities	$	(4,963)	$	(9,478)

Schedule Of Unrecognized Tax Benefits

	Unrecognized Tax Benefits
(in thousands)	2017		2016		2015
Balance at January 1	$	(18,251)	$	(8,296)	$	(1,845)
Increases related to prior year tax positions		(4,104)		(2,658)		—
Decreases related to prior year tax positions		4,045		—		1,475
Increases related to current year tax positions		—		(7,297)		(7,926)
Decreases related to current year tax positions		—		—		—
Decreases in unrecognized liability due to settlements with foreign tax authorities		—		—		—
Balance at December 31	$	(18,310)	$	(18,251)	$	(8,296)

Summary Of Deferred Income Tax Asset Valuation Allowance

Year Ended	Item	Balance at beginning of year		Additions (reductions) charged to expense		Other		Balance at end of year
2017	Deferred income tax asset valuation allowance	$	109,913	$	(28,071)	$	(1,046)	$	80,796
2016	Deferred income tax asset valuation allowance		107,312		20,450		(17,849)		109,913
2015	Deferred income tax asset valuation allowance		—		107,312		—		107,312