| Schedule of amortizable intangible assets |
| | | | | | | | | | | | | Weighted Average | Amortizable Intangible Assets | | | Estimated Useful Life | | | Amortization Period | Membership lists | | | 15 years | | | 4.1 | Customer relationships | | | 10-20 years | | | 11.9 | Trade names | | | 10 years | | | 1.8 | Non-compete and other | | | 10-15 years | | | 2.6 |
Intangible assets consisted of the following at March 31, 2026 and December 31, 2025 (in thousands): | | | | | | | | | | | | | | | | | | | | | March 31, 2026 | | December 31, 2025 | | | Gross | | | | Net | | Gross | | | | Net | | | carrying | | Accumulated | | carrying | | carrying | | Accumulated | | carrying | | | amount | | amortization | | amount | | amount | | amortization | | amount | Amortizable intangible assets | | | | | | | | | | | | | | | | | | | Customer relationships | | $ | 1,220,060 | | $ | (618,865) | | $ | 601,195 | | $ | 1,220,060 | | $ | (604,508) | | $ | 615,552 | Membership lists | | | 92,000 | | | (67,006) | | | 24,994 | | | 92,000 | | | (65,473) | | | 26,527 | Trade names | | | 73,318 | | | (71,552) | | | 1,766 | | | 73,318 | | | (71,302) | | | 2,016 | Non-compete and other | | | 7,197 | | | (6,977) | | | 220 | | | 7,197 | | | (6,955) | | | 242 | Total amortizing intangible assets | | | 1,392,575 | | | (764,400) | | | 628,175 | | | 1,392,575 | | | (748,238) | | | 644,337 | | | | | | | | | | | | | | | | | | | | Non-amortizable intangible assets | | | | | | | | | | | | | | | | | | | Trade names | | | 540,300 | | | — | | | 540,300 | | | 540,300 | | | — | | | 540,300 | Certificates of need | | | 19,600 | | | — | | | 19,600 | | | 19,600 | | | — | | | 19,600 | Total non-amortizing intangible assets | | | 559,900 | | | — | | | 559,900 | | | 559,900 | | | — | | | 559,900 | | | | | | | | | | | | | | | | | | | | Total intangibles, net | | $ | 1,952,475 | | $ | (764,400) | | $ | 1,188,075 | | $ | 1,952,475 | | $ | (748,238) | | $ | 1,204,237 |
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| Schedule of non-amortizable intangible assets |
Intangible assets consisted of the following at March 31, 2026 and December 31, 2025 (in thousands): | | | | | | | | | | | | | | | | | | | | | March 31, 2026 | | December 31, 2025 | | | Gross | | | | Net | | Gross | | | | Net | | | carrying | | Accumulated | | carrying | | carrying | | Accumulated | | carrying | | | amount | | amortization | | amount | | amount | | amortization | | amount | Amortizable intangible assets | | | | | | | | | | | | | | | | | | | Customer relationships | | $ | 1,220,060 | | $ | (618,865) | | $ | 601,195 | | $ | 1,220,060 | | $ | (604,508) | | $ | 615,552 | Membership lists | | | 92,000 | | | (67,006) | | | 24,994 | | | 92,000 | | | (65,473) | | | 26,527 | Trade names | | | 73,318 | | | (71,552) | | | 1,766 | | | 73,318 | | | (71,302) | | | 2,016 | Non-compete and other | | | 7,197 | | | (6,977) | | | 220 | | | 7,197 | | | (6,955) | | | 242 | Total amortizing intangible assets | | | 1,392,575 | | | (764,400) | | | 628,175 | | | 1,392,575 | | | (748,238) | | | 644,337 | | | | | | | | | | | | | | | | | | | | Non-amortizable intangible assets | | | | | | | | | | | | | | | | | | | Trade names | | | 540,300 | | | — | | | 540,300 | | | 540,300 | | | — | | | 540,300 | Certificates of need | | | 19,600 | | | — | | | 19,600 | | | 19,600 | | | — | | | 19,600 | Total non-amortizing intangible assets | | | 559,900 | | | — | | | 559,900 | | | 559,900 | | | — | | | 559,900 | | | | | | | | | | | | | | | | | | | | Total intangibles, net | | $ | 1,952,475 | | $ | (764,400) | | $ | 1,188,075 | | $ | 1,952,475 | | $ | (748,238) | | $ | 1,204,237 |
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