Stock-Based Compensation - Weighted Average Fair Value (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 02, 2019	Jul. 03, 2018	Jul. 02, 2019	Jul. 03, 2018	Jan. 01, 2019
Stock Options
Stock-Based Compensation
Weighted average fair value at the grant date for options issued (in dollars per share)		$ 12.81
Weighted average assumptions under Black-Scholes valuation model
Expected option term		6 years 10 months 24 days
Expected stock price volatility (as a percent)		26.40%
Risk-free interest rate (as a percent)		2.80%
Dividend yield (as a percent)		2.20%		2.20%
Stock option activity, Shares
Outstanding at beginning of year (in shares)			1,799
Granted (in shares)			300
Exercised (in shares)			(208)
Outstanding at end of year (in shares)	1,891		1,891		1,799
Exercisable at end of year (in shares)	1,055		1,055
Weighted Average Exercise Price
Outstanding at beginning of year (in dollars per share)			$ 45.03
Granted (in dollars per share)			46.03
Exercised (in dollars per share)			29.83
Outstanding at end of year (in dollars per share)	$ 46.86		46.86		$ 45.03
Exercisable at end of year (in dollars per share)	$ 45.24		$ 45.24
Weighted Average Remaining Contractual Term (In years)
Weighted Average Remaining Contractual Term (In years)			4 years 7 months 6 days		4 years 1 month 6 days
Exercisable at end of year (In years)			3 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding at beginning of year			$ 5,606
Outstanding at end of year	$ 2,599		2,599		$ 5,606
Exercisable at end of year	2,599		2,599
Total intrinsic value of options exercised	200	$ 4,300	3,600	$ 4,700
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock options, restricted shares and restricted share units	$ 8,400		$ 8,400
Expected weighted average period for recognition of compensation expense related to unvested stock option			4 years 6 months
Restricted Shares and Restricted Share Units
Restricted Shares and Restricted Share Units, Shares
Outstanding at beginning of year (in shares)			1,702
Granted (in shares)			427
Vested (in shares)			(272)
Forfeited (in shares)			(54)
Outstanding at end of year (in shares)	1,803		1,803		1,702
Fair value of shares vested	$ 1,300	$ 1,400	$ 12,400	$ 11,800
Weighted Average Fair Value
Outstanding at beginning of year (in dollars per share)			$ 48.08
Granted (in dollars per share)	$ 45.15	$ 51.88	45.89
Vested (in dollars per share)			45.70
Forfeited (in dollars per share)			48.76
Outstanding at end of year (in dollars per share)	$ 47.89		$ 47.89		$ 48.08
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock options, restricted shares and restricted share units	$ 43,700		$ 43,700
Expected weighted average period for recognition of compensation expense related to unvested stock option			3 years 2 months 12 days