Fair Value of Financial Assets and Liabilities - Fair Value Hierarchy of Financial Assets and Liabilities under U.S. GAAP Guidance (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
Marketable securities	$ 99	$ 788
Loans held for sale, at fair value	528,944	138,345
Total assets	539,906	153,453
Liabilities:
Contingent consideration	25,740	8,343
Total Liabilities	47,067	17,721
Rate lock commitments
Assets:
Derivative asset	9,604	3,181
Liabilities:
Derivative liability	1,023	8,754
Forward Sale Contracts
Assets:
Derivative asset	1,259	11,139
Liabilities:
Derivative liability	20,304	624
Level 1
Assets:
Marketable securities	99	788
Loans held for sale, at fair value	0	0
Total assets	99	788
Liabilities:
Contingent consideration	0	0
Total Liabilities	0	0
Level 1 | Rate lock commitments
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	0	0
Level 1 | Forward Sale Contracts
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	0	0
Level 2
Assets:
Marketable securities	0	0
Loans held for sale, at fair value	528,944	138,345
Total assets	528,944	138,345
Liabilities:
Contingent consideration	0	0
Total Liabilities	0	0
Level 2 | Rate lock commitments
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	0	0
Level 2 | Forward Sale Contracts
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	0	0
Level 3
Assets:
Marketable securities	0	0
Loans held for sale, at fair value	0	0
Total assets	10,863	14,320
Liabilities:
Contingent consideration	25,740	8,343
Total Liabilities	47,067	17,721
Level 3 | Rate lock commitments
Assets:
Derivative asset	9,604	3,181
Liabilities:
Derivative liability	1,023	8,754
Level 3 | Forward Sale Contracts
Assets:
Derivative asset	1,259	11,139
Liabilities:
Derivative liability	$ 20,304	$ 624