Annual report pursuant to Section 13 and 15(d)

Unaudited Quarterly Financial Information (Details)

v2.4.0.6
Unaudited Quarterly Financial Information (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Unaudited Quarterly Financial Information                      
Net revenue $ 253.5 $ 238.4 $ 259.7 $ 231.6 $ 231.2 $ 211.2 $ 230.0 $ 211.0 $ 983.2 $ 883.4 $ 749.2
Gross profit 100.1 90.8 104.3 93.7 90.7 86.1 101.9 91.2 388.9 369.9 313.3
Net income $ 24.8 $ 21.3 $ 27.4 $ 31.3 $ 23.5 $ 22.5 $ 33.0 $ 27.1 $ 104.8 $ 106.1 $ 92.3
Earnings per share - basic and diluted (in dollars per share) $ 0.40 $ 0.34 $ 0.44 $ 0.50 $ 0.38 $ 0.36 $ 0.53 $ 0.44 $ 1.68 $ 1.71 $ 1.49