CONDENSED CONSOLIDATED STATEMENT OF EQUITY (Unaudited) (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]
Balances, at beginning of period at Dec. 31, 2011	$ 1,040,208	$ 1,254	$ 1,970,820	$ (46,800)	$ (884,051)	$ (1,015)
Balances, at beginning of period (in shares) at Dec. 31, 2011	125,354,137	125,354,000
Compensation expense related to restricted stock and restricted stock unit grants	6,435	0	6,435	0	0	0
Net loss	(10,338)	0	0	0	(10,338)	0
Issuance of common stock under Associate Stock Purchase Plan	336	0	336	0	0	0
Issuance of common stock under Associate Stock Purchase Plan (in shares)		20,000
Restricted stock, net	(14)	11	(25)	0	0	0
Restricted stock, net (in shares)		1,112,000
Unrealized (loss) gain on marketable securities - restricted	1,038	0	0	0	0	1,038
Reclassification of net gains on derivatives into earnings	(79)	0	0	0	0	(79)
Amortization of payments from settlement of forward interest rate swaps	94	0	0	0	0	94
Other	136	0	142	0	0	(6)
Balances, at end of period at Mar. 31, 2012	$ 1,037,816	$ 1,265	$ 1,977,708	$ (46,800)	$ (894,389)	$ 32
Balances, at end of period (in shares) at Mar. 31, 2012	126,485,631	126,486,000