STOCKHOLDERS' EQUITY (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock incentive plans	2
Vesting period of performance-based shares	4 years
Specified operating income margin period	one or more of the fiscal years
Weighted Average Grant Date Fair Value [Abstract]
Maximum authorized amount for share repurchase			$ 50,000,000
Period for share repurchase			1 year
Number of shares repurchased (in shares)			4,040,234
Aggregate purchase price of stock repurchased			50,000,000
Stock repurchase price (in dollar per share)			$ 12.38
Additional number of shares repurchase approved (in shares)			5,307
Average price of additional shares repurchased (in dollars per share)			$ 16.77
Weighted average assumptions for grants [Abstract]
Expected volatility (in hundredths)	51.25%		45.00%
Expected dividend yield (in hundredths)	4.00%		0.00%
Expected life (term)	4 years 7 months 24 days		4 years 9 months 25 days
Risk-free interest rate (in hundredths)	0.87%		1.95%
Weighted-average exercise price during the year (in dollars per share)	$ 7.79		$ 20.78
Shares
Outstanding, beginning balance (in shares)	533,375	720,940	1,183,921
Granted (in shares)	157,000		68,000
Canceled (in shares)	(34,500)	(74,459)	(108,875)
Exercised (in shares)		(113,106)	(422,106)
Outstanding, ending balance (in shares)	655,875	533,375	720,940	1,183,921
Vested or expected to vest (in shares)	623,609
Exercisable, ending balance (in shares)	494,543
Weighted Average Exercise Price Per Share
Outstanding, beginning balance (in dollars per share)	$ 16.60	$ 14.59	$ 11.74
Granted (in dollars per share)	$ 7.79		$ 20.78
Canceled (in dollars per share)	$ 12.26	$ 12.80	$ 15.15
Exercised (in dollars per share)		$ 6.29	$ 7.46
Outstanding, ending balance (in dollars per share)	$ 14.72	$ 16.60	$ 14.59	$ 11.74
Vested or expected to vest (in dollars per share)	$ 15.02
Exercisable, ending balance (in dollars per share)	$ 16.60
Weighted Average Remaining Contractual Term
Outstanding, beginning balance	4 years 10 months 20 days	4 years 8 months 5 days	5 years 1 month 20 days	4 years 11 months 12 days
Outstanding, ending balance	4 years 10 months 20 days	4 years 8 months 5 days	5 years 1 month 20 days	4 years 11 months 12 days
Vested or expected to vest	4 years 8 months 1 day
Exercisable, ending balance	3 years 6 months 14 days
Aggregate Intrinsic Value
Outstanding, beginning balance	0	2,095,000	11,934,000
Exercised		759,000	5,668,000
Outstanding, ending balance	0	0	2,095,000	11,934,000
Vested or expected to vest	0
Exercisable, ending balance	0
Unrecognized pre-tax compensation expense	300,000
Weighted average period of unrecognized pre-tax compensation	2 years 1 month 6 days
Stock Options Outstanding [Abstract]
Shares (in shares)	655,875
Contractual Weighted Average Life	4 years 10 months 20 days
Weighted Average Price (in dollars per share)	$ 14.72
Stock Options Exercisable [Abstract]
Shares (in shares)	494,543
Weighted Exercise Price (in dollars per share)	$ 16.60
$ 4.00-$13.99 [Member]
Range of Exercise Prices [Abstract]
Range of Exercise Prices, Minimum (in dollars per share)	$ 4.00
Range of Exercise Prices, Maximum (in dollars per share)	$ 13.99
Stock Options Outstanding [Abstract]
Shares (in shares)	262,792
Contractual Weighted Average Life	7 years 1 month 10 days
Weighted Average Price (in dollars per share)	$ 9.63
Stock Options Exercisable [Abstract]
Shares (in shares)	115,792
Weighted Exercise Price (in dollars per share)	$ 11.96
$ 14.00-$19.99 [Member]
Range of Exercise Prices [Abstract]
Range of Exercise Prices, Minimum (in dollars per share)	$ 14.00
Range of Exercise Prices, Maximum (in dollars per share)	$ 19.99
Stock Options Outstanding [Abstract]
Shares (in shares)	277,083
Contractual Weighted Average Life	3 years 2 months 8 days
Weighted Average Price (in dollars per share)	$ 16.42
Stock Options Exercisable [Abstract]
Shares (in shares)	277,083
Weighted Exercise Price (in dollars per share)	$ 16.42
$ 20.00-$25.00 [Member]
Range of Exercise Prices [Abstract]
Range of Exercise Prices, Minimum (in dollars per share)	$ 20.00
Range of Exercise Prices, Maximum (in dollars per share)	$ 25.00
Stock Options Outstanding [Abstract]
Shares (in shares)	116,000
Contractual Weighted Average Life	3 years 10 months 20 days
Weighted Average Price (in dollars per share)	$ 22.19
Stock Options Exercisable [Abstract]
Shares (in shares)	101,668
Weighted Exercise Price (in dollars per share)	$ 22.37
Restricted Stock [Member]
Shares [Abstract]
Nonvested restricted stock outstanding (in shares)	501,551
Restricted stock awarded (in shares)	1,213,621
Restricted stock vested (in shares)	(374,088)
Nonvested restricted stock outstanding (in shares)	1,341,084	501,551
Weighted Average Grant Date Fair Value [Abstract]
Nonvested restricted stock outstanding (in dollars per share)	$ 16.10
Restricted stock awarded (in dollars per share)	$ 4.82
Restricted stock vested (in dollars per share)	$ 9.30
Nonvested restricted stock outstanding (in dollars per share)	$ 7.79	$ 16.10
Recognized restricted stock expense	4,000,000	3,100,000	2,000,000
Unrecognized restricted stock expense	8,600,000	6,800,000
Stock Options [Member]
Stock Options [Abstract]
Weighted average fair values of options granted (in dollars per share)	$ 2.52		$ 8.48
LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Decrease in equity due to payment of tax for employee	$ 500,000	$ 900,000	$ 1,000,000
Weighted Average Grant Date Fair Value [Abstract]
Net share settlement for restricted shares and stock options (in shares)	102,438	68,250	52,214
LTIP [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net share settlement for restricted stock (in shares)	102,438	68,250	52,214