Balance Sheet Parentheticals (Parentheticals) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Commitments and contingencies
Common Stock, Par or Stated Value Per Share	96,468,071	99,758,720
Common Stock, Par or Stated Value Per Share	150,000,000	150,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common shares - par value $0.01 per share, 150,000,000 authorized, 96,468,071 and 99,758,720 issued as of December 31, 2021 and 2020, respectively	$ 965,000	$ 998,000
Treasury Stock, Value	2,705,000	949,000
Treasury Stock, Carrying Basis	$ 54,960	$ 37,510

Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.

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Face amount or stated value per share of common stock.

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