Leases - Future Contractual Minimum Annual Rentals Receivable (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Future Minimum Lease Payments For Capital Leases And Operating Leases [Abstract]
2019	$ 102,928
2020	102,693
2021	99,593
2022	99,184
2023	99,223
Thereafter	678,106
2019	12,864
2020	13,156
2021	13,339
2022	13,420
2023	13,467
Thereafter	73,030
2019	115,792
2020	115,849
2021	112,932
2022	112,604
2023	112,690
Thereafter	$ 751,136