Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED AND DEFERRED COMPENSATION - Narrative (Details)

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STOCK BASED AND DEFERRED COMPENSATION - Narrative (Details)
9 Months Ended
Sep. 30, 2018
shares
Employees [Member] | Non-vested stock awards [Member] | Maximum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period for non-vested stock awards and stock options 5 years
Senior executive officers and non-employee directors [Member] | Non-vested stock awards and performance-based awards [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period for non-vested stock awards and stock options 3 years
2018 stock incentive plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares of common stock authorized under stock compensation plan (up to) (in shares) 1,250,000
Remaining shares available for grant (in shares) 1,240,917
2006 stock incentive plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares of common stock authorized under stock compensation plan (up to) (in shares) 5,350,000
Remaining shares available for grant (in shares) 685,234