SHAREHOLDERS' EQUITY (Details)			1 Months Ended	3 Months Ended			12 Months Ended	65 Months Ended
	Jan. 30, 2017 shares	May 04, 2016 $ / shares	Nov. 11, 2016 USD ($) senior_executive shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 shares	Sep. 30, 2016 $ / shares	Dec. 31, 2016 USD ($) $ / shares shares	May 31, 2014 USD ($)	Dec. 10, 2013 USD ($) shares
SHAREHOLDERS' EQUITY (Details) [Line Items]
Common stock, dividends, per share, cash paid (in Dollars per share) | $ / shares				$ 0.06	$ 0.05		$ 0.20
Dividends declared, amount per share (in Dollars per share) | $ / shares		$ 0.06
Share-based compensation arrangement by share-based payment award, description				Options granted under the Incentive Plan may be either “incentive stock options” or nonqualified stock options, generally expire ten years after the date of grant and are granted at an exercise price of not less than 100% of the fair market value at the date of grant.
Share-based compensation arrangement by share-based payment award, expiration period				10 years
Maximum percentage of exercise price at grand date fair value				100.00%
Stock-based compensation | $				$ 2,452,000	$ 3,066,000
Stock repurchase program, authorized amount | $									$ 50,000,000	$ 50,000,000
Stock Repurchased During Period, Shares				129,000		4,444,444		15,984,854
Stock repurchased during period, value | $				$ 2,201,000				$ 211,621,000
Stock repurchased during period per share (in Dollars per share) | $ / shares				$ 17.06				$ 13.24
Stock repurchase program, remaining authorized repurchase amount | $				$ 49,437,000				$ 49,437,000
Shares paid for tax withholding for share based compensation (in Shares)				555,047
Shares paid for tax withholding for share based compensation, value | $				$ 12,872,000
Shares paid for tax withholding for share based compensation, value per share (in Dollars per share) | $ / shares				$ 23.19
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased										5,555,556,000
Incentive Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Number of shares authorized for award (in Shares)				2,350,000				2,350,000
New shares issued (in Shares)				600,000
Incentive Stock Options [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Number of shares available for grant (in Shares)				1,622,167				1,622,167
2006 Equity Incentive Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options additional grants in future (in Shares)				0				0
Performance Shares [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Equity instruments other than options, grants in period (in Shares)				300,494
Award vesting period				3 years
Equity instruments other than options, vested in period, fair value | $			$ 8,500,000	$ 6,055,000
Equity instruments other than options, grants in period, weighted average grant date fair value (in Dollars per share) | $ / shares				$ 20.15
Restricted Stock and Performance Shares [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Equity instruments other than options, grants in period (in Shares)			528,000
Minimum [Member] | Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Award vesting period				3 years
Maximum [Member] | Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Award vesting period				4 years
Executive Officer [Member] | Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Number of Persons Granted Shares | senior_executive			2
Award vesting period			4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Post-Vesting Holding Period			2 years
Subsequent Event [Member] | Executive Officer [Member] | Minimum [Member] | Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	384,000
Subsequent Event [Member] | Executive Officer [Member] | Maximum [Member] | Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	528,000