Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	Jan. 01, 2012	Jan. 02, 2011
Consolidated Balance Sheets [Abstract]
Accumulated amortization on intangible assets	$ 11.7	$ 22.9
Discount on current portion of contract acquisition costs payable	0.9	1.2
Discount on long-term contract acquisition costs payable	$ 1.4	$ 2.4
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000	200,000
Common stock, shares issued	26,406	26,406
Common stock, shares outstanding	26,369	26,369