Stockholders' Equity (Stock Repurchase Program) (Details) $ / shares in Units, shares in Millions	3 Months Ended	6 Months Ended	23 Months Ended
	Sep. 23, 2017 USD ($) $ / shares shares	Sep. 23, 2017 USD ($) $ / shares shares	Sep. 23, 2017 USD ($)
Stockholders' Equity Note [Abstract]
Repurchase and retirement of common stock, value	$ 50,000,000	$ 95,600,000	$ 119,800,000
Share repurchase program, amount approved	200,000,000	200,000,000	200,000,000
Remaining amount available for share repurchases under stock repurchase program	$ 80,200,000	$ 80,200,000	$ 80,200,000
Repurchase and retirement of common stock (in shares) | shares	0.9	1.6
Average cost per share repurchased (in dollars per share) | $ / shares	$ 56.19	$ 59.77