Income Taxes (Tables)

12 Months Ended

Sep. 30, 2012

Income Tax Disclosure [Abstract]

Geographic Breakdown of Income before Income Tax

The following is a geographical breakdown of consolidated net income (loss) before income tax:

	Year Ended September 30,
	2012			2011			2010
United States	$	12,392		$	(10,234	)	$	33,211
Foreign	(16,740		)	1,603			(567		)
Total income (loss) before income tax	$	(4,348	)	$	(8,631	)	$	32,644

Components Of Income Taxes Expense

For 2012, 2011 and 2010, income tax expense consisted of the following:

	Year Ended September 30,
	2012			2011			2010
Current income taxes:
Federal	$	491		$	(338	)	$	(6	)
State and local	613			244			673
Foreign	3,511			1,390			320
Current income tax expense	4,615			1,296			987
Deferred income taxes:
Federal	1,276			606			12,659
State and local	(513		)	157			197
Foreign	(2,151		)	174			(1,343		)
Deferred income tax expense	(1,388		)	937			11,513
Income tax expense	$	3,227		$	2,233		$	12,500

Reconciliation Of Effective Income Tax Rate

A reconciliation of our effective income tax rate on income before taxes with the federal statutory rate is as follows:

	Year Ended September 30,
	2012	2011	2010
Statutory rate	35.0%	35.0%	35.0%
State and local taxes, net of federal income taxes	(5.5)	0.9	2.2
Research and development tax credits	11.8	23.0	(0.4)
Reserves for uncertainty in income taxes	(6.1)	(3.8)	1.7
Foreign rate differentials	(151.7)	3.2	(1.4)
Change in valuation allowance	(16.5)	(3.0)	0.1
Nondeductible expense	(3.6)	(18.0)	1.3
Acquisition-related contingent consideration	57.7	(56.6)	—
Other	4.7	(6.6)	(0.2)
Effective tax rate	(74.2)%	(25.9)%	38.3%

Components Of Deferred Tax Assets And Liabilities

Significant components of our deferred tax assets and liabilities as of September 30, 2012 and 2011, are as follows:

	September 30,
	2012			2011
Domestic deferred tax assets:
Net operating loss carryforwards	$	8,069		$	19,483
Credit carryforwards	11,167			10,701
Deferred revenue	28,196			24,612
Share-based compensation	21,347			14,128
Other compensation	4,874			4,026
Other	3,274			1,974
Total domestic deferred tax assets	76,927			74,924
Less: valuation allowance	(145		)	(141		)
Net domestic deferred tax assets	76,782			74,783
Domestic deferred tax liabilities:
Intangible assets	(10,305		)	(13,957		)
Property and equipment	(13,463		)	(10,526		)
Deferred costs	(24,718		)	(20,365		)
Other	(394		)	(1,193		)
Total domestic deferred tax liabilities	(48,880		)	(46,041		)
Net domestic deferred tax asset	$	27,902		$	28,742

	September 30,
	2012			2011
Foreign deferred tax assets:
Net operating loss carryforwards	$	3,741		$	2,804
Deferred revenue	1,368			697
Share-based compensation	1,480			1,023
Other	524			199
Total foreign deferred tax assets	7,113			4,723
Less: valuation allowance	(3,073		)	(157		)
Net foreign deferred tax assets	4,040			4,566
Foreign deferred tax liabilities:
Intangible assets	(3,975		)	(5,048		)
Deferred costs	(83		)	(89		)
Other	(506		)	(422		)
Total foreign deferred tax liabilities	(4,564		)	(5,559		)
Net foreign deferred tax liability	$	(524	)	$	(993	)

Reconciliation Of Tax Contingencies

The reconciliation of our tax contingencies is as follows:

	Year Ended September 30,
	2012			2011
Gross tax contingencies — beginning of year	$	4,869		$	5,246
Increase due to acquisition	—			252
Gross increases to tax positions in prior periods	640			439
Gross decrease to tax positions in prior periods	(205		)	(1,735		)
Gross increases to current period tax positions	227			808
Gross decrease due to expiration	(416		)	(141		)
Gross tax contingencies — end of year	$	5,115		$	4,869