Stock-Based Compensation - RSUs Outstanding (Details) - $ / shares shares in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
RSUs Vested
Common Stock, Dividends, Per Share, Cash Paid	$ 0.18	$ 0.18	$ 0.18	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.15	$ 0.71	$ 0.66	$ 0.58
Class A
RSUs Vested
Common Stock, Dividends, Per Share, Cash Paid									0.71	0.66	0.58
Class B
RSUs Vested
Common Stock, Dividends, Per Share, Cash Paid									$ 0.71	$ 0.66	$ 0.58
Management Stock Purchase Plan | Restricted stock units (RSUs)
RSUs Outstanding
Number Outstanding (in shares)	148				101				148	101	80	132
Weighted Average Purchase Price (in dollars per share)	$ 36.37				$ 36.14				$ 36.37	$ 36.14	$ 32.08	$ 27.46
RSUs Vested
Number Vested (in shares)	28				25				28	25	31
Weighted Average Purchase Price (in dollars per share)	$ 37.78				$ 33.35				$ 37.78	$ 33.35	$ 27.96
$26.51-$31.41 | Management Stock Purchase Plan | Restricted stock units (RSUs)
Information about RSUs outstanding
Low end of purchase price range (in dollars per share)									26.51
High end of purchase price range (in dollars per share)									$ 35.41
RSUs Outstanding
Number Outstanding (in shares)	87								87
Weighted Average Purchase Price (in dollars per share)	$ 35.30								$ 35.30
RSUs Vested
Number Vested (in shares)	2								2
Weighted Average Purchase Price (in dollars per share)	$ 30.96								$ 30.96
$37.13-$40.27 | Management Stock Purchase Plan | Restricted stock units (RSUs)
Information about RSUs outstanding
Low end of purchase price range (in dollars per share)									37.13
High end of purchase price range (in dollars per share)									$ 40.27
RSUs Outstanding
Number Outstanding (in shares)	61								61
Weighted Average Purchase Price (in dollars per share)	$ 37.89								$ 37.89
RSUs Vested
Number Vested (in shares)	26								26
Weighted Average Purchase Price (in dollars per share)	$ 38.35								$ 38.35