Common Stock	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Common Stock	Common Stock. During 2020, the Company issued an aggregate of 3,026,340 new shares of its Common Stock ($1 par value), which included shares purchased by the underwriters to the transaction. Proceeds from the Common Stock issuance, net of issuance costs, amounted to $109.0 million.