Cover	12 Months Ended
	Dec. 31, 2021
Cover [Abstract]
Documents Incorporated by Reference	Certain information called for by Part III of the Form 10-K is incorporated by reference from the registrant’s definitive proxy statement for the 2022 Annual Meeting of Stockholders which will be filed pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this report.