XML 134 R120.htm IDEA: XBRL DOCUMENT v3.21.1
Equity - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Feb. 28, 2018
Share Repurchase Plan, February 2018      
Stockholders Equity Note [Line Items]      
Common stock authorized to repurchase by Board     $ 100,000,000
Common stock repurchased (in shares) 0    
Available authorization remaining for repurchase $ 78,000,000    
Convertible Debt Securities      
Stockholders Equity Note [Line Items]      
Securities excluded in the calculation of diluted earnings per share (in shares)   35,400,000  
Equity awards      
Stockholders Equity Note [Line Items]      
Securities excluded in the calculation of diluted earnings per share (in shares) 15,460 21,249  
At The Market Offerings | Common Stock      
Stockholders Equity Note [Line Items]      
Stock issuance program, authorized amount   $ 175,000,000  
Remaining capacity $ 110,000,000    
Issuance of common stock (in shares) 0    
Common Stock      
Stockholders Equity Note [Line Items]      
Issuance of common stock (in shares) 806,068 350,088  
Direct stock purchase and dividend reinvestment plan (in shares) 0 0