Schedule of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Other Assets [Line Items]
Intangible assets, less accumulated amortization of $12,236 and $10,351, respectively	$ 8,998	$ 10,866
Financing receivable - Kansas lease	145,036	147,481
ROU asset	169,968	194,080
Lease incentive assets	4,171	4,813
Debt issuance costs, less accumulated amortization of $3,173 and $2,332, respectively	1,020	1,855
Cash equivalents and cash surrender value of life insurance held in Rabbi trust	15,453	14,940
Straight-line rent receivable	648	2,196
Insurance receivable	13,522	14,353
Note receivable from APM	3,063	3,094
Other	2,660	2,985
Other assets, total	$ 364,539	$ 396,663