Accounting Policies (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended	9 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 31, 2014	Sep. 30, 2014
Shipping and Handling
Shipping and handling costs included in selling, general and administrative expense	$ 14.4	$ 14.7
Research and Development
Research and development costs included in selling, general, and administrative expense	$ 6.4	$ 6.3
Performance stock units | Class A | Minimum
Stock-based compensation
Percentage of stock earned by stock unit recipient			0.00%
Performance stock units | Class A | Maximum
Stock-based compensation
Percentage of stock earned by stock unit recipient			200.00%
Second Amended and Restated 2004 Stock Incentive Plan
Stock-based compensation
Number of stock incentive plans	1
Second Amended and Restated 2004 Stock Incentive Plan | Stock options
Stock-based compensation
Vesting period	4 years
Percentage of stock options becoming exercisable	25.00%
Expiration period	10 years
Options granted (in shares)		4,808
Second Amended and Restated 2004 Stock Incentive Plan | Stock options | Class A
Stock-based compensation
Minimum exercise price as percentage of fair market value of common stock on grant date	100.00%
Second Amended and Restated 2004 Stock Incentive Plan | Restricted stock
Stock-based compensation
Granted (in shares)	1,262	1,747
Second Amended and Restated 2004 Stock Incentive Plan | Deferred shares
Stock-based compensation
Vesting rate per year for maximum vesting period	0.33		50
Second Amended and Restated 2004 Stock Incentive Plan | Deferred shares | Maximum
Stock-based compensation
Vesting period	3 years		2 years
Second Amended and Restated 2004 Stock Incentive Plan | Performance stock units
Stock-based compensation
Vesting period			3 years
Granted (in shares)				117,619
Management Stock Purchase Plan | Class A
Stock-based compensation
Shares authorized	2,000,000
Management Stock Purchase Plan | Restricted stock units (RSUs)
Stock-based compensation
Granted (in shares)	59,995	30,561
Fair value assumptions
Expected life	3 years	3 years
Expected stock price volatility (as a percent)	23.40%	31.20%
Expected dividend yield (as a percent)	1.20%	0.90%
Risk-free interest rate (as a percent)	1.10%	0.70%
Weighted average grant-date fair value (in dollars per share)	$ 19.04	$ 22.57
Management Stock Purchase Plan | Restricted stock units (RSUs) | Minimum
Stock-based compensation
Vesting period	3 years
Management Stock Purchase Plan | Restricted stock units (RSUs) | Maximum
Stock-based compensation
Vesting period	3 years
Management Stock Purchase Plan | Restricted stock units (RSUs) | Class A
Stock-based compensation
Number of common shares for each unit of award held	1
Exercise price as percentage of fair market value of common stock on grant date	67.00%