Reconciliation of Income Tax Provision at Statutory Income Tax Rate and Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation Of Provision Of Income Taxes [Line Items]
Statutory federal rate	21.00%	21.00%	21.00%
Revaluation of deferred tax liabilities	132.70%
Dividends paid deduction		(24.90%)	(18.90%)
State taxes, net of federal tax benefit	4.80%	1.90%	1.20%
Permanent differences	2.80%	2.20%	1.20%
Deferred tax expense on Kansas lease structure		5.20%
Tax benefit of equity-based compensation	2.60%	1.10%	0.10%
Other items, net	(3.60%)	0.80%	(0.60%)
Effective income tax rate, Total	160.30%	7.30%	4.00%