Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 34.7	$ 27.6	$ 67.2	$ 72.0
Other comprehensive income (loss), net:
Foreign currency translation adjustments	(11.4)	5.0	(15.9)	3.3
Net unrealized gains on available-for-sale securities, net of taxes of $0.0 and $(0.4) for the three months ended December 31, 2014 and 2013, respectively; and $0.0 and $(0.4) for the six months ended December 31, 2014 and 2013, respectively	0.1	0.6		0.5
Pension and post-retirement liability adjustment, net of taxes of $0.0 and $(0.1) for the three months ended December 31, 2014 and 2013, respectively; and $(0.1) and $(0.1) for the six months ended December 31, 2014 and 2013, respectively	0.1		0.1	0.1
Total other comprehensive income (loss), net	(11.2)	5.6	(15.8)	3.9
Comprehensive income	$ 23.5	$ 33.2	$ 51.4	$ 75.9