CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 32.9	$ 33.0	$ 105.6	$ 80.6
Other comprehensive income (loss), net of tax
Pension and post-retirement benefits, net of tax of $(2.5), $(1.2), $(7.7) and $(3.7), respectively	4.4	2.0	13.2	6.0
Net gain (loss) on derivative instruments, net of tax of $(1.1), $3.1, $(4.6) and $18.3, respectively	1.8	(4.9)	7.7	(29.9)
Unrealized gain (loss) on marketable securities, net of tax of $(0.2), $0.0, $(0.2) and $1.0, respectively	0.2		0.3	(0.2)
Foreign currency translation	(1.7)	6.5	4.1	(10.0)
Other comprehensive income (loss), net of tax	4.7	3.6	25.3	(34.1)
Comprehensive income	37.6	36.6	130.9	46.5
Less: Comprehensive (income) loss attributable to the noncontrolling interest		(0.3)	(0.7)	0.6
Comprehensive income attributable to Carpenter	$ 37.6	$ 36.3	$ 130.2	$ 47.1