XML 169 R76.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SHAREHOLDERS' EQUITY - (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award requisite service period 1 year      
Repurchase of common stock (in shares) 237,647      
Repurchases of common stock $ 3,867,000 $ 5,061,000 $ 10,617,000  
Average cost per share (in dollars per share) $ 16.27      
Remaining authorized repurchase amount $ 10,000,000.0 $ 800,000    
Value reserved for future issuance       $ 150,000,000.0
Capital shares reserved for future issuance (in shares)       800,000
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award requisite service period 1 year      
Unamortized share-based compensation expense not yet recognized $ 2,800,000      
Unamortized share-based compensation remaining weighted average vesting period 1 year 8 months 4 days      
Granted (in shares) 140,156 133,060 106,454  
Minimum | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Ultimate expense range, percent of target 0.00%      
Vesting period 3 years      
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Amount authorized to repurchase common stock through March 8, 2018 $ 10,000,000 $ 10,000,000.0    
Maximum | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Ultimate expense range, percent of target 250.00%      
Vesting period 5 years