Income Taxes (Tables)

12 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Summary Of Income (Loss) Before Income Taxes

Our income (loss) before income taxes consisted of the following:

	Year ended September 30,
	2015			2014		2013
	(in thousands)
Domestic	$	(110,867	)	$	17,038	$	6,112
Foreign	137,392			169,074		120,122
Total income before income taxes	$	26,525		$	186,112	$	126,234

Schedule Of Provision For (Benefit From) Income Taxes

Our (benefit) provision for income taxes consisted of the following:

	Year ended September 30,
	2015			2014			2013
	(in thousands)
Current:
Federal	$	3,907		$	12,792		$	7,081
State	599			2,062			1,512
Foreign	23,823			31,010			13,586
	28,329			45,864			22,179
Deferred:
Federal	(20,809		)	(13,200		)	(38,224		)
State	(566		)	(2,085		)	(4,718		)
Foreign	(27,986		)	(4,661		)	3,228
	(49,361		)	(19,946		)	(39,714		)
Total provision (benefit) for income taxes	$	(21,032	)	$	25,918		$	(17,535	)

Summary Of Federal Income Tax Rate And Effective Income Tax Rate

The reconciliation between the statutory federal income tax rate and our effective income tax rate is shown below:

	Year ended September 30,
	2015		2014		2013
Statutory federal income tax rate	35	%	35	%	35	%
Change in valuation allowance	63	%	(11	)%	(32	)%
State income taxes, net of federal tax benefit	7	%	1	%	1	%
Federal and state research and development credits	(8	)%	—	%	(1	)%
Resolution of uncertain tax positions	(11	)%	—	%	(1	)%
Foreign rate differences	(213	)%	(19	)%	(26	)%
Foreign withholding tax	14	%	3	%	5	%
U.S. permanent items	34	%	4	%	5	%
Other, net	—	%	1	%	—	%
Effective income tax rate	(79	)%	14	%	(14	)%

Schedule Of Deferred Tax Assets And Liabilities

The significant temporary differences that created deferred tax assets and liabilities are shown below:

	September 30,
	2015			2014
	(in thousands)
Deferred tax assets:
Net operating loss carryforwards	$	71,533		$	57,677
Foreign tax credits	15,962			9,022
Capitalized research and development expense	31,690			41,720
Pension benefits	11,009			39,063
Deferred revenue	71,399			67,433
Stock-based compensation	16,777			18,828
Other reserves not currently deductible	21,940			24,273
Amortization of intangible assets	62,227			9,302
Other tax credits	37,270			30,982
Depreciation	3,465			3,157
Capital loss carryforward	8,040			7,964
Other	10,116			7,118
Gross deferred tax assets	361,428			316,539
Valuation allowance	(198,168		)	(177,541		)
Total deferred tax assets	163,260			138,998
Deferred tax liabilities:
Acquired intangible assets not deductible	(124,401		)	(110,003		)
Pension prepayments	(395		)	(20,263		)
Deferred revenue	(3,110		)	(1,446		)
Other	(3,598		)	(4,484		)
Total deferred tax liabilities	(131,504		)	(136,196		)
Net deferred tax assets	$	31,756		$	2,802

Summary Of Valuation Allowance

The changes to the valuation allowance were primarily due to:

	Year ended September 30,
	2015			2014			2013
	(in millions)
Valuation allowance beginning of year	$	177.5		$	156.5		$	170.4
Net release of valuation allowance (1)	(18.7		)	(18.1		)	(44.6		)
Net increase/decrease in deferred tax assets for foreign jurisdictions with a full valuation allowance	(1.9		)	(5.2		)	1.9
Establish valuation allowance for acquired businesses	—			21.5			12.1
Establish valuation allowance in foreign jurisdictions	—			3.5			—
Adjust deferred tax asset and valuation allowance	41.3			19.3			16.7
Valuation allowance end of year	$	198.2		$	177.5		$	156.5

(1) In 2014 and 2013, this is attributable to recognition of deferred tax liabilities recorded in connection with accounting for acquisitions and in 2015 and 2013 a reduction in deferred tax assets associated with our U.S. pension plan, both of which are described above.

Schedule Of Unrecognized Tax Benefit

	Year ended September 30,
Unrecognized tax benefits	2015			2014			2013
	(in millions)
Unrecognized tax benefit beginning of year	$	15.0		$	13.7		$	19.1
Tax positions related to current year:
Additions	1.3			2.2			1.0
Tax positions related to prior years:
Additions	0.8			0.3			1.8
Reductions	(3.0		)	(0.1		)	(6.3		)
Settlements	—			(0.6		)	(0.7		)
Statute expirations	—			(0.5		)	(1.2		)
Unrecognized tax benefit end of year	$	14.1		$	15.0		$	13.7

Summary Of Income Tax Examinations Years

As of September 30, 2015, we remained subject to examination in the following major tax jurisdictions for the tax years indicated:

Major Tax Jurisdiction	Open Years
United States	2011 through 2015
Germany	2011 through 2015
France	2013 through 2015
Japan	2009 through 2015
Ireland	2011 through 2015