Long-term Debt and Bank Credit Facilities (Details) (USD $)	6 Months Ended	0 Months Ended	11 Months Ended	0 Months Ended	6 Months Ended							6 Months Ended
	Jun. 15, 2013	Nov. 27, 2012 Amendment 1 [Member] Credit Agreement [Member]	Nov. 27, 2012 Amendment 1 [Member] Credit Agreement [Member]	Nov. 27, 2012 Amendment 1 [Member] FILO Tranche Loans [Member]	Jun. 15, 2013 Convertible Subordinated Debt [Member]	Dec. 15, 2012 Convertible Subordinated Debt [Member]	Dec. 21, 2011 Convertible Subordinated Debt [Member]	Dec. 21, 2011 Credit Agreement [Member]	Dec. 21, 2011 Swing Line Sub-Facility [Member]	Jun. 15, 2013 Revolving Credit Facility [Member]	Dec. 21, 2011 Revolving Credit Facility [Member]	Jun. 15, 2013 FILO Tranche Loans [Member]	Jun. 15, 2013 Minimum [Member]	Jun. 15, 2013 Maximum [Member]
Long-term Debt and Bank Credit Facilities (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 590,000,000	$ 590,000,000	$ 30,000,000				$ 520,000,000	$ 50,000,000	$ 250,000,000	$ 75,000,000
Convertible Subordinated Debt Reserve Amount						150,000,000	100,000,000
Line of Credit Facility, Increase (Decrease), Net			70,000,000
Line of Credit Facility, Periodic Payment				2,500,000
Line of Credit Facility, Frequency of Payment and Payment Terms				first day of each fiscal quarter
Line of Credit Facility, Expiration Date		Dec. 21, 2017
Line of Credit Facility, Interest Rate Description	The LIBOR interest rate margin can vary quarterly in 0.25% increments between three pricing levels ranging from 1.50% to 2.00%, except for FILO Tranche Loans which bear interest at a rate equal to LIBOR plus 2.75%
Debt Instrument, Interest Rate, Increase (Decrease)	0.25%
Debt Instrument, Basis Spread on Variable Rate	1.75%											2.75%	1.50%	2.00%
Line of Credit Facility, Remaining Borrowing Capacity	184,300,000
Letters of Credit Outstanding, Amount	14,400,000
Line of Credit Facility, Covenant Terms	The Credit Agreement contains no financial covenants unless and until (i) the continuance of an event of default thereunder, or (ii) the failure of the Company to maintain Excess Availability equal to or greater than 10% of the borrowing base at any time, in which event, the Company must comply with a trailing 12-month basis consolidated fixed charge covenant ratio of 1.0 : 1.0, which ratio shall continue to be tested each period thereafter until Excess Availability exceeds 10% of the borrowing base for three consecutive fiscal periods
Debt Instrument, Debt Default, Description of Violation or Event of Default	Events of default under the Credit Agreement are usual and customary for transactions of this type, subject to, in specific instances, materiality and cure periods including, among other things: (a) any failure to pay principal thereunder when due or to pay interest or fees on the due date; (b) material misrepresentations; (c) default under other agreements governing material indebtedness of the Company; (d) default in the performance or observation of any covenants; (e) any event of insolvency or bankruptcy; (f) any final judgments or orders to pay more than $15.0 million that remain unsecured or unpaid; (g) change of control, as defined in the Credit Agreement; and (h) any failure of a collateral document, after delivery thereof, to create a valid mortgage or first-priority lien.
Debt Instrument, Face Amount					150,100,000
Long-term Debt, Gross					322,000,000
Debt Instrument Maturity Amount Per Instrument					466.11
Debt Conversion Convertible Redemption Rate Denominator					1,000
Repayments of Debt					$ 150,100,000