STOCK PLANS (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2011 Y
$10.24 $15.00
Range of Exercise Prices
Range of exercise prices, low end of range (in dollars per share)	$ 10.24
Range of exercise prices, high end of range (in dollars per share)	$ 15.00
Options Outstanding
Number of Options (in shares)	1,138,623
Weighted Average Remaining Contractual Life (in years)	4.48
Weighted Average Exercise Price (in dollars per share)	$ 11.67
Options Exercisable
Number of Options (in shares)	660,623
Weighted Average Exercise Price (in dollars per share)	$ 12.45
$15.01 $18.77
Range of Exercise Prices
Range of exercise prices, low end of range (in dollars per share)	$ 15.01
Range of exercise prices, high end of range (in dollars per share)	$ 18.77
Options Outstanding
Number of Options (in shares)	226,570
Weighted Average Remaining Contractual Life (in years)	3.09
Weighted Average Exercise Price (in dollars per share)	$ 17.75
Options Exercisable
Number of Options (in shares)	226,570
Weighted Average Exercise Price (in dollars per share)	$ 17.75
$18.78 $23.47
Range of Exercise Prices
Range of exercise prices, low end of range (in dollars per share)	$ 18.78
Range of exercise prices, high end of range (in dollars per share)	$ 23.47
Options Outstanding
Number of Options (in shares)	175,000
Weighted Average Remaining Contractual Life (in years)	5.12
Weighted Average Exercise Price (in dollars per share)	$ 22.77
Options Exercisable
Number of Options (in shares)	175,000
Weighted Average Exercise Price (in dollars per share)	$ 22.77
$10.24 $23.47
Range of Exercise Prices
Range of exercise prices, low end of range (in dollars per share)	$ 10.24
Range of exercise prices, high end of range (in dollars per share)	$ 23.47
Options Outstanding
Number of Options (in shares)	1,540,193
Weighted Average Remaining Contractual Life (in years)	4.35
Weighted Average Exercise Price (in dollars per share)	$ 13.83
Options Exercisable
Number of Options (in shares)	1,062,193
Weighted Average Exercise Price (in dollars per share)	$ 15.28