| Schedule of weighted-average life, original cost, accumulated amortization and net book value by major class |
| | | | | | | | | | | | | | Weighted-Average | | | | | Accumulated | | | | | | Life (Years) | | Original Cost | | Amortization | | Net Book Value | | | | (in thousands) | Definite-lived intangible assets | | | | | | | | | | | | BAQSIMI® product rights | | 24 | | $ | 591,338 | | $ | 67,758 | | $ | 523,580 | Land-use rights | | 39 | | | 2,540 | | | 963 | | | 1,577 | Other intangibles | | 7 | | | 2,443 | | | 532 | | | 1,911 | Subtotal | | 24 | | | 596,321 | | | 69,253 | | | 527,068 | Indefinite-lived intangible assets | | | | | | | | | | | | Trademark | | * | | | 29,225 | | | — | | | 29,225 | Goodwill | | * | | | 3,330 | | | — | | | 3,330 | Subtotal | | * | | | 32,555 | | | — | | | 32,555 | As of March 31, 2026 | | * | | $ | 628,876 | | $ | 69,253 | | $ | 559,623 |
| | | | | | | | | | | | | | Weighted-Average | | | | | Accumulated | | | | | | Life (Years) | | Original Cost | | Amortization | | Net Book Value | | | | (in thousands) | Definite-lived intangible assets | | | | | | | | | | | | BAQSIMI® product rights | | 24 | | $ | 591,338 | | $ | 61,597 | | $ | 529,741 | Land-use rights | | 39 | | | 2,540 | | | 947 | | | 1,593 | Other intangibles | | 7 | | | 2,443 | | | 439 | | | 2,004 | Subtotal | | 24 | | | 596,321 | | | 62,983 | | | 533,338 | Indefinite-lived intangible assets | | | | | | | | | | | | Trademark | | * | | | 29,225 | | | — | | | 29,225 | Goodwill | | * | | | 3,402 | | | — | | | 3,402 | Subtotal | | * | | | 32,627 | | | — | | | 32,627 | As of December 31, 2025 | | * | | $ | 628,948 | | $ | 62,983 | | $ | 565,965 |
* | Intangible assets with indefinite lives have an indeterminable average life. |
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