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Equity - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 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   $ 78,000,000    
Convertible Debt Securities          
Stockholders Equity Note [Line Items]          
Securities excluded in the calculation of diluted earnings per share (in shares)       34,100,000  
Equity awards          
Stockholders Equity Note [Line Items]          
Securities excluded in the calculation of diluted earnings per share (in shares) 18,645 11,561 17,053 16,405  
At The Market Offerings | Common Stock          
Stockholders Equity Note [Line Items]          
Stock issuance program, authorized amount $ 175,000,000   $ 175,000,000    
Remaining capacity $ 110,000,000   $ 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