Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Shareholder Rights Plan (Details)

v3.20.2
Stockholders' Equity - Shareholder Rights Plan (Details)
Mar. 31, 2020
$ / shares
shares
Jun. 30, 2020
$ / shares
Jun. 27, 2020
$ / shares
Dec. 31, 2019
$ / shares
Equity [Abstract]        
Shareholder rights plan, ownership trigger threshold 15.00%      
Right dividend declared, per share of common stock held 1      
Common stock, par value (in dollars per share) $ 1.00 $ 1 $ 1.00 $ 1
Number of securities called by each right (in shares) | shares 0.5      
Right, common stock purchase price (in USD per share) $ 22.50      
Right, common stock purchase price, full right equivalent (USD per share) $ 45.00