Common Stock and Preferred Stock - Preferred Stock Narrative (Details) - $ / shares	Mar. 29, 2020	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)		10,000,000
Preferred stock, shares outstanding (in shares)		0	0
Dividends, preferred stock purchase right per common stock (in shares)	1
Minimum threshold of outstanding common stock purchased without Board Of Director approval subject to penalty, percentage	10.00%
Purchase price (in dollars per share)	$ 60.00
Preferred stock, par value (in dollars per share)	0.0001	$ 0.0001
Preferred stock, redemption price per share (in dollars per share)	$ 0.001
Threshold of shares owned to qualify as Acquiring Person	10.00%
Quarterly dividend rate (in dollars per share)	$ 0.01
Amount per share received upon liquidation (in dollars per share)	$ 1.00
Threshold of shares to qualify as Beneficial Owner	50.00%
Percent of assets or earning power sold or transferred, allowed purchase for each right	50.00%