Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,283.3	$ 1,192.9
Operating expenses:
Cost of revenues	990.4	914.1
Selling, general and administrative expenses	205.3	175.5
Total operating expenses	1,195.7	1,089.6
Operating income	87.5	103.3
Interest expense, net	(26.9)	(22.6)
Other non-operating expense, net	(5.2)	(2.4)
Earnings before income taxes	55.4	78.2
Provision for income taxes	5.0	11.0
Net earnings	$ 50.4	$ 67.2
Basic earnings per share (in dollars per share)	$ 0.43	$ 0.58
Diluted earnings per share (in dollars per share)	$ 0.42	$ 0.57
Weighted-average shares outstanding:
Basic (in shares)	117.5	116.2
Diluted (in shares)	118.9	118.3