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Income Taxes - Summary Reconciliation Reported Amount of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax expense at the U.S. federal statutory rate	$ 13,729	$ 3,041	$ 6,568
State income taxes, net of federal benefits	5,149	1,670	364
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners	(141)	(2,241)	(4,097)
Valuation allowance	0	(29,375)	(1,013)
Executive compensation, including stock incentives	1,881	805	26
Other permanent differences	1,853	(116)	(110)
Income tax (benefit) expense	$ 22,471	$ (26,216)	$ 1,738
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Tax expense at the U.S. federal statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefits	7.90%	11.50%	1.20%
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners	(0.20%)	(15.50%)	(13.10%)
Valuation allowance	0.00%	(202.90%)	(3.20%)
Executive compensation, including stock incentives	2.90%	5.60%	0.10%
Other permanent differences	2.80%	(0.80%)	(0.40%)
Effective income rate, percent	34.40%	(181.10%)	5.60%

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- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate applied to permanent differences.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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