Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 28.2	$ 22.6
Interest rate swaps:
Change in fair value, net of tax	0.8
Reclassification adjustment, net of tax	(0.5)
Other comprehensive income (loss)	0.3
Total comprehensive income	$ 28.5	$ 22.6