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Share Based Compensation - Additional Information (Details) - USD ($) $ in Millions		12 Months Ended
	Aug. 18, 2020	Dec. 31, 2020	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense		$ 3.6
Number of shares, vested		390,000
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense	$ 3.0
RSUs \| Directors, Officers and Employees \| 2020 Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares approved for grant			690,000
RSUs \| Robert T.Chiles \| Construction Group \| Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, vested	390,000
Number of shares converted	390,000
Restricted Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense		$ 1.7
Unrecognized compensation expense, weighted average recognition period		2 years 9 months 18 days