Stock-Based Compensation Arrangements Stock-Based Compensation Arrangements - Summary of Stock-Based Compensation Expense and Associated Tax Benefit Recognized (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2013		Sep. 30, 2012		Sep. 29, 2013		Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation costs	$ 2,288		$ 1,958		$ 6,603		$ 5,725
Portion capitalized as property and equipment	(44)	[1]	(33)	[1]	(134)	[1]	(95)	[1]
Stock-based compensation expense recognized	2,244		1,925		6,469		5,630
Tax benefit recognized from stock-based compensation awards	$ 77		$ 0		$ 249		$ 619

[1] We capitalize the portion of stock-based compensation costs related to our design, construction, facilities and legal departments that are directly attributable to our store development projects, such as the design and construction of a new store and the remodeling and expansion of our existing stores. Capitalized stock-based compensation cost attributable to our store development projects is included in “Property and equipment, net” in the Consolidated Balance Sheets.