Other assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Line Items]
Acquired in-place leases	$ 609,872	$ 462,324
Deferred compensation plan	38,937	31,057
Deferred financing costs – unsecured senior line of credit	19,294	24,124
Deposits	176,077	13,861
Furniture, fixtures, and equipment	26,429	31,130
Net investment in direct financing and sales-type leases	70,656	37,840
Notes receivable	13,088	3,424
Operating lease right-of-use asset	474,300
Other assets	53,985	30,620
Prepaid expenses	24,806	67,667
Property, plant, and equipment	151,375	153,614
Other assets	1,658,818	1,191,581
Other Assets
Other Assets [Line Items]
Operating lease right-of-use asset	$ 474,299	$ 335,920