Income Taxes (Schedule of Components of Income Tax Provision) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Current:
Federal	$ 12,003	$ 18,156	$ 5,470
State	1,813	1,512	939
Foreign	1,562	331	563
Current income tax provision	15,378	19,999	6,972
Deferred:
Federal	(447)	(1,840)	(122)
State	(105)	25	(76)
Foreign	(6,170)	393	(62)
Deferred income tax provision	(6,722)	(1,422)	(260)
Total income tax provision	$ 8,656	$ 18,577	$ 6,712

Deferred income tax provision.

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The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations.

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations.

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