CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 33.2	$ 23.8	$ 72.7	$ 47.6
Other comprehensive income (loss), net of tax
Pension and post-retirement benefits, net of tax of $(2.6) $(1.2), $(5.2) and $(2.4), respectively	4.4	2.0	8.8	4.0
Net gain (loss) on derivative instruments, net of tax of $8.1, $(4.6), $(3.5) and $15.3, respectively	(13.8)	7.5	5.9	(25.0)
Unrealized gain (loss) on marketable securities, net of tax of $0.0, $0.0, $0.0 and $0.1, respectively	0.1		0.1	(0.2)
Foreign currency translation	1.3	(5.1)	5.8	(16.5)
Other comprehensive (loss) income	(8.0)	4.4	20.6	(37.7)
Comprehensive income	25.2	28.2	93.3	9.9
Less: Comprehensive (income) loss attributable to the noncontrolling interest	(0.2)	0.2	(0.7)	0.9
Comprehensive income attributable to Carpenter	$ 25.0	$ 28.4	$ 92.6	$ 10.8