CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Net income	$ 133.0	$ 77.3
Depreciation and amortization	63.3	64.3
Deferred income taxes	(13.8)	(11.8)
Other non-cash adjustments	4.1	4.4
Changes in operating assets and liabilities	(142.2)	(87.3)
Net cash provided by operating activities	44.4	46.9
Investing activities:
Additions to property, plant and equipment	(15.4)	(24.1)
Additions to equipment held for rental	(10.1)	(3.1)
Proceeds from sale of property, plant and equipment	0.1	6.1
Proceeds from sale of equipment held for rental	3.9	2.4
Other investing activities	(3.4)	(0.7)
Net cash used by investing activities	(24.9)	(19.4)
Financing activities:
Repayment of long-term debt	0	(72.5)
Repurchases of common stock	(125.1)	0
Proceeds from exercise of stock options	15.7	2.9
Other financing activities	0.8	(0.2)
Net cash used by financing activities	(108.6)	(69.8)
Effect of exchange rate changes on cash	0.7	2.2
Decrease in cash and cash equivalents	(88.4)	(40.1)
Cash and cash equivalents at beginning of period	540.7	428.5
Cash and cash equivalents at end of period	452.3	388.4
Supplemental disclosures:
Cash paid for interest	30.2	37.0
Cash paid for income taxes	$ 44.0	$ 31.6