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SHAREHOLDERS' EQUITY (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Aug. 01, 2019
$ / shares
Apr. 16, 2018
$ / shares
Mar. 07, 2018
USD ($)
$ / shares
Jan. 29, 2016
shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Mar. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
senior_executive
$ / shares
shares
Sep. 30, 2018
$ / shares
Jun. 30, 2018
USD ($)
$ / shares
Mar. 31, 2018
$ / shares
Dec. 31, 2017
$ / shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
$ / shares
Sep. 30, 2018
$ / shares
Jan. 31, 2018
shares
Aug. 03, 2016
USD ($)
Mar. 22, 2016
USD ($)
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Common stock, dividends, per share, cash paid (in Dollars per share) | $ / shares         $ 0.0725       $ 1.0700     $ 0.2175 $ 1.2100        
Dividends, Common Stock, Cash | $     $ 38,073,000                            
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 | $         $ 3,332,000       $ 2,452,000     $ 9,687,000 $ 7,372,000        
Stock repurchase program, authorized amount | $                               $ 50,000,000  
Stock repurchase program, remaining authorized repurchase amount | $         $ 57,955,000             $ 57,955,000          
Stock repurchased during period (in shares)         0             37,500          
Stock repurchased during period, value | $                       $ 372,000          
Stock repurchased during period per share (in Dollars per share) | $ / shares                       $ 9.92          
Incentive Stock Options [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Number of shares available for grant (in Shares)         276,442             276,442          
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          
Restricted Stock and Restricted Stock Units [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Equity instruments other than options, grants in period (in Shares)             1,194,538                    
Performance Shares [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Award vesting period           3 years 3 years                    
Equity instruments other than options, grants in period (in Shares)         0 62,227 666,538                    
Equity instruments other than options, granted in period, fair value | $           $ 990,000 $ 8,105,000                    
Equity instruments other than options, grants in period, weighted average grant date fair value (in Dollars per share) | $ / shares           $ 15.91 $ 12.16                    
Restricted Stock and Performance Shares [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Equity instruments other than options, grants in period (in Shares)             528,000                    
Restricted Stock [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Shares paid for tax withholding for share based compensation (in Shares)         0   3,861         85,847          
Shares paid for tax withholding for share based compensation, value | $             $ 47,000         $ 1,059,000          
Shares paid for tax withholding for share based compensation, value per share (in Dollars per share) | $ / shares             $ 12.16         $ 12.34          
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]                                  
Award vesting period             4 years                    
Equity instruments other than options, granted in period, fair value | $             $ 3,576,000                    
Equity instruments other than options, grants in period, weighted average grant date fair value (in Dollars per share) | $ / shares             $ 6.77                    
Number of persons granted shares | senior_executive             2                    
Award post-vesting holding period             2 years                    
Executive Officer [Member] | Minimum [Member] | Restricted Stock [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Awards vested in period (in shares)             384,000                    
Executive Officer [Member] | Maximum [Member] | Restricted Stock [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Awards vested in period (in shares)             528,000                    
Incentive Plan [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Number of shares authorized for award (in Shares)       3,350,000                     1,000,000    
New shares issued (in Shares)       600,000                          
Revolver Due 2020 [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Line of credit facility, current borrowing capacity | $                                 $ 350,000,000
Quarterly Dividend [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Common stock, dividends, per share, cash paid (in Dollars per share) | $ / shares         $ 0.0725 $ 0.0725 $ 0.0725 $ 0.07 $ 0.07 $ 0.07 $ 0.07 $ 0.2175   $ 0.28      
Quarterly Dividend [Member] | Subsequent Event [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Dividends declared, amount per share (in Dollars per share) | $ / shares $ 0.0725                                
Special Dividend [Member]                                  
SHAREHOLDERS' EQUITY (Details) [Line Items]                                  
Common stock, dividends, per share, cash paid (in Dollars per share) | $ / shares   $ 1.00 $ 1.00