Income Taxes - Operating loss carryfowards and tax credits (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Foreign tax credit carryforward		$ 16,738	$ 20,058
United Kingdom
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		198,571
Foreign tax credit carryforward		13,907
Ireland
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		61,685
Australia
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		32,333
Hong Kong
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		28,080
Netherlands
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		60
United States
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	[1]	23,766
Operating loss carryforward, portion subject to utilization limits		7,000
Operating loss carryforward, annual utilization limit		600
AMT credit carryforward		$ 2,830

[1] On January 30, 2014, the Company’s U.S. mortgage operations underwent an ownership change for U.S. federal income tax purposes as a result of the Company’s acquisition of the CMG Entities. As a result of this ownership change, a limitation has been imposed upon the utilization of approximately $7.0 million of the Company’s existing U.S. net operating loss carryforwards. Utilization is limited to approximately $0.6 million per year in accordance with Section 382 of the Internal Revenue Code of 1986 as amended (“the Code”).