Income taxes - Reconciliation of Statutory Tax Rate to Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Tax Jurisdiction of Domicile [Extensible Enumeration]	UNITED STATES
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory federal income tax	$ 10,406
State taxes, net of federal benefit	260
REIT (income)/loss not subject to corporate income tax	(8,952)
Differences in taxable income/(loss) from GAAP net income/(loss)	2,295
Changes in valuation allowance	(3,121)
Income tax expense	$ 888	$ 112
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax	21.00%
State taxes, net of federal benefit	0.50%
REIT (income)/loss not subject to corporate income tax	(18.00%)
Differences in taxable income/(loss) from GAAP net income/(loss)	4.60%
Changes in valuation allowance	(6.30%)
Income tax expense / effective tax rate	1.80%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 231
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-231