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Debt Warehouse Facilities (Tables)
3 Months Ended
Mar. 31, 2023
Warehouse Facilities [Abstract]  
Schedule of Warehouse Facilities
Warehouse Facilities
March 31, 2023December 31, 2022
($ in millions)Outstanding BalanceMaximum CapacityOutstanding BalanceMaximum Capacity
Warehouse facilities:
BSBY(1) plus 1.30%, expires September 18, 2023
$254.4 700.0 215.7 700.0 
SOFR plus 1.30%, expires September 15, 2023
503.1 1,200.0 132.3 1,200.0 
SOFR plus 1.40%, expires July 28, 2023
— 400.0 9.0 400.0 
Fannie Mae ASAP(2) program, SOFR plus 1.25%
56.6 n/a99.2 n/a
Gross warehouse facilities814.1 2,300.0 456.2 2,300.0 
Debt issuance costs(0.5)n/a(0.9)n/a
Total warehouse facilities$813.6 2,300.0 455.3 2,300.0 
(1) Bloomberg Short-Term Bank Yield Index rate ("BSBY")
(2) As Soon As Pooled ("ASAP") funding program.