Stock-Based Compensation Expense - Nonvested Restricted Stock Shares Activity (Details) - Restricted Stock $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Oct. 04, 2015 USD ($) $ / shares shares
Shares (in thousands)
Nonvested, shares	20
Granted, shares	0
Vested, shares	0
Forfeited or expired, shares	0
Nonvested, shares	20
Weighted-Average Exercise Price
Nonvested, in dollars per share | $ / shares	$ 34.05
Granted, in dollars per share | $ / shares	0.00
Vested, in dollars per share | $ / shares	0.00
Forfeited or expired, in dollars per share | $ / shares	0.00
Nonvested, in dollars per share | $ / shares	$ 34.05
Aggregate Intrinsic Value (in thousands)
Non-vested as of October 4, 2015 | $	$ 27