Equity Incentive Compensation Plans (Restricted Stock Units and Performance Share Program) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 16, 2013 USD ($) $ / shares shares
Restricted Stock Units (RSUs) [Member]
Performance Share Awards
Outstanding shares at the beginning of the period | shares	981,877
Granted | shares	286,344
Issued | shares	(853,169)
Canceled/expired | shares	(22,511)
Outstanding shares at the end of the period | shares	392,541
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 26.72
Granted (in dollars per share) | $ / shares	45.51
Issued (in dollars per share) | $ / shares	23.94
Canceled/expired (in dollars per share) | $ / shares	44.69
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 46.86
Vest Date Fair Value
Issued | $	$ 39,513
Performance Shares [Member]
Performance Share Awards
Outstanding shares at the beginning of the period | shares	222,587
Issued | shares	(135,167)
Canceled/expired | shares	(87,420)
Outstanding shares at the end of the period | shares	0
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 45.79
Issued (in dollars per share) | $ / shares	44.33
Canceled/expired (in dollars per share) | $ / shares	44.42
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 0.00
Vest Date Fair Value
Issued | $	$ 6,308