Quarterly report [Sections 13 or 15(d)]

Debt - Schedule of Components of Interest Expense, Related Fees and Cash Paid for Interest Expense for Debt (Details)

v3.26.1
Debt - Schedule of Components of Interest Expense, Related Fees and Cash Paid for Interest Expense for Debt (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Debt Instrument [Line Items]      
Interest expense $ 28,146,000 $ 19,698,000  
Amortization of debt issuance cost (loan fees) 2,010,000 1,619,000  
Unused facility and other fees (loan fees) 667,000 779,000  
Total interest expense and fees 30,823,000 22,096,000  
Cash paid for interest expense 32,396,000 25,580,000  
Loss on extinguishment of debt 0 15,000  
SBA Debentures      
Debt Instrument [Line Items]      
Interest expense 3,253,000 2,499,000  
Amortization of debt issuance cost (loan fees) 289,000 227,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 3,542,000 2,726,000  
Cash paid for interest expense 6,343,000 3,971,000  
February 2025 Notes      
Debt Instrument [Line Items]      
Interest expense   202,000  
Amortization of debt issuance cost (loan fees)   19,000  
Unused facility and other fees (loan fees)   0  
Total interest expense and fees   221,000  
Cash paid for interest expense   1,070,000  
June 2025 Notes      
Debt Instrument [Line Items]      
Interest expense   754,000  
Amortization of debt issuance cost (loan fees)   40,000  
Unused facility and other fees (loan fees)   0  
Total interest expense and fees   794,000  
Cash paid for interest expense   0  
June 2025 3-Year Notes      
Debt Instrument [Line Items]      
Interest expense   750,000  
Amortization of debt issuance cost (loan fees)   39,000  
Unused facility and other fees (loan fees)   0  
Total interest expense and fees   789,000  
Cash paid for interest expense   0  
March 2026 A Notes      
Debt Instrument [Line Items]      
Interest expense 393,000 562,000  
Amortization of debt issuance cost (loan fees) 16,000 24,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 409,000 586,000  
Cash paid for interest expense 1,125,000 1,125,000  
March 2026 B Notes      
Debt Instrument [Line Items]      
Interest expense 398,000 568,000  
Amortization of debt issuance cost (loan fees) 17,000 26,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 415,000 594,000  
Cash paid for interest expense 1,138,000 1,138,000  
September 2026 Notes      
Debt Instrument [Line Items]      
Interest expense 2,175,000 2,175,000  
Amortization of debt issuance cost (loan fees) 203,000 203,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 2,378,000 2,378,000  
Cash paid for interest expense 4,266,000 4,266,000  
Amortization of original issue discounts 42,000 42,000  
January 2027 Notes      
Debt Instrument [Line Items]      
Interest expense 3,079,000 3,079,000  
Amortization of debt issuance cost (loan fees) 207,000 207,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 3,286,000 3,286,000  
Cash paid for interest expense 5,906,000 5,906,000  
Amortization of original issue discounts 126,000 126,000  
2028 Convertible Notes      
Debt Instrument [Line Items]      
Interest expense 3,725,000 827,000  
Amortization of debt issuance cost (loan fees) 354,000 77,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 4,079,000 904,000  
Cash paid for interest expense 6,828,000 0  
Amortization of original issue discounts 311,000 68,000  
February 2029 Notes      
Debt Instrument [Line Items]      
Interest expense 2,284,000    
Amortization of debt issuance cost (loan fees) 174,000    
Unused facility and other fees (loan fees) 0    
Total interest expense and fees 2,458,000    
Cash paid for interest expense 0    
Amortization of original issue discounts 99,000    
June 2030 Notes      
Debt Instrument [Line Items]      
Interest expense 5,441,000    
Amortization of debt issuance cost (loan fees) 219,000    
Unused facility and other fees (loan fees) 0    
Total interest expense and fees 5,660,000    
Cash paid for interest expense 0    
Amortization of original issue discounts 191,000    
2031 Asset-Backed Notes      
Debt Instrument [Line Items]      
Interest expense 818,000 1,492,000  
Amortization of debt issuance cost (loan fees) 42,000 80,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 860,000 1,572,000  
Cash paid for interest expense 799,000 1,457,000  
Amortization of original issue discounts 19,000 38,000  
Loss on extinguishment of debt 0 15,000 $ 200,000
2033 Notes      
Debt Instrument [Line Items]      
Interest expense 625,000 625,000  
Amortization of debt issuance cost (loan fees) 27,000 27,000  
Unused facility and other fees (loan fees) 0 0  
Total interest expense and fees 652,000 652,000  
Cash paid for interest expense 625,000 625,000  
MUFG Bank Facility      
Debt Instrument [Line Items]      
Interest expense 2,663,000 2,570,000  
Amortization of debt issuance cost (loan fees) 259,000 442,000  
Unused facility and other fees (loan fees) 455,000 560,000  
Total interest expense and fees 3,377,000 3,572,000  
Cash paid for interest expense 2,316,000 2,179,000  
SMBC Facility      
Debt Instrument [Line Items]      
Interest expense 3,292,000 3,595,000  
Amortization of debt issuance cost (loan fees) 203,000 208,000  
Unused facility and other fees (loan fees) 212,000 219,000  
Total interest expense and fees 3,707,000 4,022,000  
Cash paid for interest expense $ 3,050,000 $ 3,843,000