Schedule III - Real Estate and Accumulated Depreciation and Amortization Part 9 (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Investments In Real Estate [Line Items]
Total Investment in Real Estate	$ 1,514,750	$ 1,410,051	$ 1,246,588	$ 1,113,651
Accumulated Depreciation And Amortization Description [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	1,456,333
Cost Capitalized Subsequent to Initial Investment	58,417
Land	804,717
Building and Improvements	710,033
Total Investment in Real Estate	1,514,750
Accumulated Depreciation and Amortization	233,865
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Midland Park One [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	201
Cost Capitalized Subsequent to Initial Investment	338
Land	150
Building and Improvements	389
Total Investment in Real Estate	539
Accumulated Depreciation and Amortization	$ 323
Date of Initial Leasehold or Acquisition Investment	1989
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | North Bergen One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 630
Cost Capitalized Subsequent to Initial Investment	147
Land	410
Building and Improvements	367
Total Investment in Real Estate	777
Accumulated Depreciation and Amortization	$ 358
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | North Plainfield One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 227
Cost Capitalized Subsequent to Initial Investment	542
Land	175
Building and Improvements	594
Total Investment in Real Estate	769
Accumulated Depreciation and Amortization	$ 569
Date of Initial Leasehold or Acquisition Investment	1978
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Paramus One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 382
Cost Capitalized Subsequent to Initial Investment	745
Land	249
Building and Improvements	878
Total Investment in Real Estate	1,127
Accumulated Depreciation and Amortization	$ 351
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Parlin One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 418
Cost Capitalized Subsequent to Initial Investment	246
Land	203
Building and Improvements	461
Total Investment in Real Estate	664
Accumulated Depreciation and Amortization	$ 325
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Paterson One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 620
Cost Capitalized Subsequent to Initial Investment	16
Land	403
Building and Improvements	233
Total Investment in Real Estate	636
Accumulated Depreciation and Amortization	$ 233
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Ridgewood One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 703
Cost Capitalized Subsequent to Initial Investment	467
Land	458
Building and Improvements	712
Total Investment in Real Estate	1,170
Accumulated Depreciation and Amortization	$ 598
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Somerset One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 683
Cost Capitalized Subsequent to Initial Investment	201
Land	445
Building and Improvements	439
Total Investment in Real Estate	884
Accumulated Depreciation and Amortization	$ 438
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Vernon One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 671
Cost Capitalized Subsequent to Initial Investment	495
Land	437
Building and Improvements	729
Total Investment in Real Estate	1,166
Accumulated Depreciation and Amortization	$ 561
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Washington Township One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 912
Cost Capitalized Subsequent to Initial Investment	430
Land	594
Building and Improvements	748
Total Investment in Real Estate	1,342
Accumulated Depreciation and Amortization	$ 587
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Watchung One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 450
Cost Capitalized Subsequent to Initial Investment	257
Land	226
Building and Improvements	481
Total Investment in Real Estate	707
Accumulated Depreciation and Amortization	$ 305
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | West Orange One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 800
Cost Capitalized Subsequent to Initial Investment	446
Land	521
Building and Improvements	725
Total Investment in Real Estate	1,246
Accumulated Depreciation and Amortization	$ 676
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW JERSEY | Cortlandt Manor
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,872
Land	1,872
Total Investment in Real Estate	$ 1,872
Date of Initial Leasehold or Acquisition Investment	2011
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bayside One [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 470
Cost Capitalized Subsequent to Initial Investment	254
Land	306
Building and Improvements	418
Total Investment in Real Estate	724
Accumulated Depreciation and Amortization	$ 338
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Brewster One [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 789
Land	789
Total Investment in Real Estate	$ 789
Date of Initial Leasehold or Acquisition Investment	2011
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Two [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,910
Land	1,349
Building and Improvements	561
Total Investment in Real Estate	1,910
Accumulated Depreciation and Amortization	$ 327
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Three [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 2,408
Land	1,712
Building and Improvements	696
Total Investment in Real Estate	2,408
Accumulated Depreciation and Amortization	$ 365
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Brooklyn Six [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 627
Cost Capitalized Subsequent to Initial Investment	313
Land	408
Building and Improvements	532
Total Investment in Real Estate	940
Accumulated Depreciation and Amortization	$ 480
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Four [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 877
Land	877
Total Investment in Real Estate	$ 877
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Plattsburgh One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 4,150
Land	1,127
Building and Improvements	3,023
Total Investment in Real Estate	4,150
Accumulated Depreciation and Amortization	$ 159
Date of Initial Leasehold or Acquisition Investment	2021
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Astoria One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,684
Land	1,105
Building and Improvements	579
Total Investment in Real Estate	1,684
Accumulated Depreciation and Amortization	$ 321
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Two
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 884
Land	884
Total Investment in Real Estate	$ 884
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Three
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 953
Land	953
Total Investment in Real Estate	$ 953
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Four
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,049
Land	485
Building and Improvements	564
Total Investment in Real Estate	1,049
Accumulated Depreciation and Amortization	$ 314
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronx Five
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 46
Cost Capitalized Subsequent to Initial Investment	1,318
Land	84
Building and Improvements	1,280
Total Investment in Real Estate	1,364
Accumulated Depreciation and Amortization	$ 379
Date of Initial Leasehold or Acquisition Investment	1972
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Chester [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,158
Land	1,158
Total Investment in Real Estate	$ 1,158
Date of Initial Leasehold or Acquisition Investment	2011
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Brooklyn One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 237
Cost Capitalized Subsequent to Initial Investment	402
Land	154
Building and Improvements	485
Total Investment in Real Estate	639
Accumulated Depreciation and Amortization	$ 393
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Brooklyn Two
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 477
Cost Capitalized Subsequent to Initial Investment	319
Land	306
Building and Improvements	490
Total Investment in Real Estate	796
Accumulated Depreciation and Amortization	$ 441
Date of Initial Leasehold or Acquisition Investment	1985
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Briarcliff Manor One [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 652
Cost Capitalized Subsequent to Initial Investment	552
Land	502
Building and Improvements	702
Total Investment in Real Estate	1,204
Accumulated Depreciation and Amortization	$ 702
Date of Initial Leasehold or Acquisition Investment	1976
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Bronxville [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,232
Land	1,232
Total Investment in Real Estate	$ 1,232
Date of Initial Leasehold or Acquisition Investment	2011
Accumulated Depreciation And Amortization Description [Member] | NEW YORK | Corona One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 2,543
Land	1,903
Building and Improvements	640
Total Investment in Real Estate	2,543
Accumulated Depreciation and Amortization	$ 341
Date of Initial Leasehold or Acquisition Investment	2013
Accumulated Depreciation And Amortization Description [Member] | NEW MEXICO | Albuquerque One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,829
Land	1,382
Building and Improvements	447
Total Investment in Real Estate	1,829
Accumulated Depreciation and Amortization	$ 148
Date of Initial Leasehold or Acquisition Investment	2017
Accumulated Depreciation And Amortization Description [Member] | NEW MEXICO | Albuquerque Two
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 2,308
Land	1,830
Building and Improvements	478
Total Investment in Real Estate	2,308
Accumulated Depreciation and Amortization	$ 170
Date of Initial Leasehold or Acquisition Investment	2017
Accumulated Depreciation And Amortization Description [Member] | NEW MEXICO | Albuquerque Three
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 2,322
Land	1,796
Building and Improvements	526
Total Investment in Real Estate	2,322
Accumulated Depreciation and Amortization	$ 182
Date of Initial Leasehold or Acquisition Investment	2017
Accumulated Depreciation And Amortization Description [Member] | NEW MEXICO | Albuquerque Four
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 3,682
Land	3,141
Building and Improvements	541
Total Investment in Real Estate	3,682
Accumulated Depreciation and Amortization	$ 192
Date of Initial Leasehold or Acquisition Investment	2017
Accumulated Depreciation And Amortization Description [Member] | NEW MEXICO | Las Cruces One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,842
Land	1,374
Building and Improvements	468
Total Investment in Real Estate	1,842
Accumulated Depreciation and Amortization	$ 159
Date of Initial Leasehold or Acquisition Investment	2017
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Fernley One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 1,665
Land	221
Building and Improvements	1,444
Total Investment in Real Estate	1,665
Accumulated Depreciation and Amortization	$ 774
Date of Initial Leasehold or Acquisition Investment	2015
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Henderson One [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 4,697
Land	3,258
Building and Improvements	1,439
Total Investment in Real Estate	4,697
Accumulated Depreciation and Amortization	$ 15
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Henderson Two [Member]
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 5,411
Land	2,358
Building and Improvements	3,053
Total Investment in Real Estate	5,411
Accumulated Depreciation and Amortization	$ 30
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas One
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 2,814
Land	563
Building and Improvements	2,251
Total Investment in Real Estate	2,814
Accumulated Depreciation and Amortization	$ 306
Date of Initial Leasehold or Acquisition Investment	2019
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Two
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 3,094
Land	830
Building and Improvements	2,264
Total Investment in Real Estate	3,094
Accumulated Depreciation and Amortization	$ 330
Date of Initial Leasehold or Acquisition Investment	2019
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Three
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 3,472
Land	655
Building and Improvements	2,817
Total Investment in Real Estate	3,472
Accumulated Depreciation and Amortization	$ 375
Date of Initial Leasehold or Acquisition Investment	2019
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Four
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 3,722
Land	631
Building and Improvements	3,091
Total Investment in Real Estate	3,722
Accumulated Depreciation and Amortization	$ 195
Date of Initial Leasehold or Acquisition Investment	2021
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Five
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 3,752
Land	615
Building and Improvements	3,137
Total Investment in Real Estate	3,752
Accumulated Depreciation and Amortization	$ 428
Date of Initial Leasehold or Acquisition Investment	2019
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Six
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 4,181
Land	1,075
Building and Improvements	3,106
Total Investment in Real Estate	4,181
Accumulated Depreciation and Amortization	$ 13
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Seven
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 5,054
Land	1,032
Building and Improvements	4,022
Total Investment in Real Estate	5,054
Accumulated Depreciation and Amortization	$ 36
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Eight
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 5,402
Land	2,269
Building and Improvements	3,133
Total Investment in Real Estate	5,402
Accumulated Depreciation and Amortization	$ 29
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Nine
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 5,641
Land	3,751
Building and Improvements	1,890
Total Investment in Real Estate	5,641
Accumulated Depreciation and Amortization	$ 9
Date of Initial Leasehold or Acquisition Investment	2022
Accumulated Depreciation And Amortization Description [Member] | NEVADA | Las Vegas Ten
Schedule Of Investments In Real Estate [Line Items]
Initial Cost of Leasehold or Acquisition Investment to Company	$ 5,757
Land	2,768
Building and Improvements	2,989
Total Investment in Real Estate	5,757
Accumulated Depreciation and Amortization	$ 13
Date of Initial Leasehold or Acquisition Investment	2022