Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE (Assumptions for Valuation of Options) (Details)

v3.10.0.1
EQUITY AND EARNINGS PER SHARE (Assumptions for Valuation of Options) (Details) - USD ($)
$ in Thousands
Apr. 10, 2018
Jan. 01, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair Value at Valuation Date $ 3,558 $ 4,272
Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Volatility 35.66% 39.73%
Expected Dividend Yield 0.00% 0.00%
Risk-Free Rate, lower range 2.68% 2.16%
Risk-Free Rate, upper range 2.82% 2.29%
Stock options | Lower Range    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Remaining Term 2 years 8 months 12 days 3 years
Stock options | Upper Range    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Remaining Term 6 years 3 months 18 days 6 years 7 months 6 days