Employee Benefit Plans (Schedule of RSU Activity) (Details) - RSUs shares in Thousands	3 Months Ended
	Apr. 01, 2018 $ / shares shares
Number of shares
Beginning balance (in shares) | shares	1,130
Granted (in shares) | shares	608
Vested (in shares) | shares	(109)
Cancelled (in shares) | shares	(12)
Ending balance (in shares) | shares	1,617
Weighted Average Grant Date Fair Value Per Share
Beginning Balance (in dollars per share) | $ / shares	$ 43.22
Granted (in dollars per share) | $ / shares	70.15
Vested (in dollars per share) | $ / shares	41.09
Cancelled (in dollars per share) | $ / shares	49.67
Ending Balance (in dollars per share) | $ / shares	$ 53.44