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Debt - Schedule of Debt (Details)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 01, 2017 USD ($)	Jun. 01, 2017 GBP (£)
Debt Instrument [Line Items]
Exchange rate	1.2910	1.2529
Outstanding at	$ 1,783,711,000
Carrying value (at amortized cost)	1,764,726,000	$ 1,763,612,000
Fair value	$ 1,812,720,000	1,819,327,000
6.125% Bonds due 2025 \| Burford Capital Finance LLC \| Bonds
Debt Instrument [Line Items]
Interest rate	6.125%
Outstanding at	$ 122,786,000
Carrying value (at amortized cost)	122,700,000	129,275,000
Fair value	123,075,000	129,641,000
Principal value	$ 6,600,000
5.000% Bonds due 2026 \| Burford Capital PLC \| Bonds
Debt Instrument [Line Items]
Interest rate	5.00%		5.00%	5.00%
Outstanding at	$ 225,925,000
Carrying value (at amortized cost)	225,372,000	218,640,000
Fair value	$ 221,714,000	212,706,000
Principal value			$ 225,800,000	£ 175,000,000.0
6.250% Senior Notes due 2028 \| Burford Capital Global Finance LLC \| Senior Notes
Debt Instrument [Line Items]
Interest rate	6.25%
Outstanding at	$ 400,000,000
Carrying value (at amortized cost)	396,224,000	395,913,000
Fair value	$ 398,452,000	399,012,000
6.875% Senior Notes due 2030 \| Burford Capital Global Finance LLC \| Senior Notes
Debt Instrument [Line Items]
Interest rate	6.875%
Outstanding at	$ 360,000,000
Carrying value (at amortized cost)	353,294,000	352,961,000
Fair value	$ 356,659,000	360,220,000
9.250% Senior Notes due 2031 \| Burford Capital Global Finance LLC \| Senior Notes
Debt Instrument [Line Items]
Interest rate	9.25%
Outstanding at	$ 675,000,000
Carrying value (at amortized cost)	667,136,000	666,823,000
Fair value	$ 712,820,000	$ 717,748,000