XML 70 R91.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation, pre-tax $ 10.8 $ 9.2 $ 9.6
Stock-based compensation, after-tax 8.0 6.9 6.1
Compensation cost related to non-vested awards not yet recognized $ 16.3    
Weighted average remaining period over which cost to be recognized 1 year 8 months 12 days    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of options vested $ 5.0 7.4 9.5
Restricted Stock | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Restricted Stock | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of options vested $ 1.9 1.4 9.9
Restricted Stock Units (RSUs) | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Restricted Stock Units (RSUs) | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
PBRSUs | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Payout ranges of target awards, percentage 0.00%    
PBRSUs | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Payout ranges of target awards, percentage 150.00%    
MBRSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Payout ranges of target awards, percentage 100.00%    
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of options vested $ 0.1 $ 0.1 0.1
Stock option granted, contractual term P10Y    
Weighted average grant-date fair value of options granted $ 4.65 $ 4.01  
Intrinsic value, stock options exercised     $ 0.2
Options exercised (in shares)   0  
Options vested in the period (in shares)   0  
Stock Compensation Plans      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized and available for issuance (in shares) 1,600,000