Accumulated | Weighted-average | |||||||||
(Millions, except useful life) | Fair Value | Amortization | Net Balance | Amortization Period (Years) | ||||||
Customer lists | $ | 810.0 | $ | 52.8 | $ | 757.2 | 10.0 | |||
Provider networks | 550.0 | 21.1 | 528.9 | 17.0 | ||||||
Trademarks/trade names | 100.0 | 6.5 | 93.5 | 10.0 | ||||||
Technology | 30.0 | 4.9 | 25.1 | 4.0 | ||||||
Total | $ | 1,490.0 | $ | 85.3 | $ | 1,404.7 | 12.5 | |||