Share-Based Compensation - Option Activity (Details) - Options - 2006 Incentive Plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Options
Outstanding at the beginning of the period (in shares)	585,981
Exercised (in shares)	(140,513)
Forfeited (in shares)	(979)
Outstanding at the end of the period (in shares)	444,489	585,981
Options exercisable at the end of the period (in shares)	408,277
Vested or expected to vest at the end of the period (in shares)	444,281
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 25.48
Exercised (in dollars per share)	22.85
Forfeited (in dollars per share)	21.52
Outstanding at the end of the period (in dollars per share)	26.31	$ 25.48
Options exercisable at the end of the period (in dollars per share)	24.84
Vested or expected to vest at the end of the period (in dollars per share)	$ 26.31
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period	2 years 9 months 22 days
Outstanding at the end of the period	2 years 9 months 22 days
Options exercisable at the end of the period	2 years 4 months 21 days
Vested or expected to vest at the end of the period	2 years 9 months 18 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	$ 9,286
Exercised (in dollars)	3,659	$ 3,000	$ 5,400
Forfeited (in dollars)	28
Outstanding at the end of the period (in dollars)	12,115	$ 9,286
Options exercisable at the end of the period (in dollars)	11,732
Vested or expected to vest at the end of the period (in dollars)	$ 12,113