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Business Segment and Geographic Information (Tables)
 12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Schedule of Revenue from External Customers by Geographic Areas The table below sets forth revenue by our two primary geographical markets, the United States and outside of the United States, based on the geographic location to which we deliver the components. The majority of our long-lived assets are located in the United States.
Twelve Months Ended December 31,
202120202019
(Dollars in millions)Amount%
of Total		Amount%
of Total		Amount%
of Total
United States$1,849.4 76 %$1,509.5 78 %$1,161.5 79 %
Outside of the United States599.1 24 %417.2 22 %314.5 21 %
Total revenue$2,448.5 100 %$1,926.7 100 %$1,476.0 100 %
Schedule of Disaggregation of Revenue
The following table sets forth revenue by major sales channel for the twelve months ended December 31, 2021, 2020 and 2019:
Twelve Months Ended December 31,
202120202019
(Dollars in millions)Amount%
of Total		Amount%
of Total		Amount%
of Total
Distributor$2,024.3 83 %$1,437.6 75 %$1,011.6 69 %
Direct424.2 17 %489.1 25 %464.4 31 %
Total revenue$2,448.5 100 %$1,926.7 100 %$1,476.0 100 %