LONG-TERM DEBT OBLIGATIONS, Convertible Senior Notes (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Jun. 25, 2012
LONG-TERM DEBT OBLIGATIONS [Abstract]
4.00% Convertible Senior Notes Aggregate Principal Amount	$ 105,000	$ 105,000
Debt Issuance Cost Four Notes		3,900
Net proceeds from 4.00% convertible senior notes		101,062
4.00%, Interest Rate, Stated Percentage		4.00%
Amortization period for debt issuance cost related to convertible notes		7 years
Debt Instrument, Convertible, Shares per $1,000 principal amount of 4.00% Convertible Senior Notes		170
Maximum number of shares upon conversion of the 4.00% Notes		17,857,143
Conversion price of convertible debt		$ 5.88
Date on which convertible notes will become redeemable		Jul. 01, 2017
Percentage of common stock above conversion price (in hundredths)		130.00%
Number of consecutive trading days within measurement period		20
Number of consecutive trading days on which trading price is examined for triggering of conversion		30
Number of trading days to trigger measurement period within date company provides notice of redemption		5
Percentage of Principal Amount That The Redemption Price Will Be Equal To		100.00%
Debt Instrument, 4.00% Convertible, Interest Expense	1,191
Repurchase of Convertible Debt, including accrued interest	3,922
Debt Instrument, 3.50% Convertible, Interest Expense Paid With Repurchase	$ 67