Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Condensed Consolidated Balance Sheets
Allowance for doubtful accounts	$ 0	$ 0
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 1.00	$ 1.00
Preferred Stock, Shares Authorized (in shares)	5,000,000	5,000,000
Preferred Stock, Shares Issued (in shares)	0	0
Preferred Stock, Shares Outstanding (is shares)	0	0
Common Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	250,000,000	250,000,000
Common Stock, Shares Issued (in shares)	124,023,374	97,851,243
Common Stock, Shares Outstanding (in shares)	123,943,829	97,771,698
Treasury stock, shares held (in shares)	79,545	79,545