Stock-Based Compensation (Schedule of Activity for Stock Options with Market Condition) (Details) - Performance Shares shares in Thousands	3 Months Ended
	Mar. 30, 2019 shares
Unvested
Beginning balance, shares	909
Granted, shares	265
Canceled, shares	(98)
Ending balance, shares	1,076
Vested
Beginning balance, shares	0
Canceled, shares	0
Ending balance, shares	0
Total
Beginning balance, shares	909
Granted, shares	265
Canceled, shares	(98)
Ending balance, shares	1,076