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Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Net income $ 69,557 $ 35,118 $ 29,711
Other comprehensive income (loss):      
Change in unrealized gains (losses) on available-for-sale securities (net of tax) (11) 41 (39)
Reclassification adjustment (gains) losses included in net income (net of tax) (19) 1 27
Unrealized gains (losses) on available- for-sale securities (net of tax) (30) 42 (12)
Foreign currency translation adjustments (809) (437) 338
Other comprehensive income (loss) (839) (395) 326
Total comprehensive income $ 68,718 $ 34,723 $ 30,037