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USM Acquisition Table (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Mar. 01, 2017
Business Acquisition [Line Items] |  |  |  |  |
Adjusted purchase price, net of cash acquired |  | $ 1.3 | $ 895.5 |  |
Goodwill |  | $ 1,633.0 |  | $ 1,654.3 |
USM Mexico Manufacturing LLC [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Contractual purchase price | $ 162.5 |  |  |  |
Adjustment to contractual purchase price for working capital settlement |  |  |  |  | $ 2.5
Adjustment to contractual purchase price for capital equipment |  |  |  |  | 4.9
Adjustment to contractual purchase price for settlement of existing accounts payable balance |  |  |  |  | (22.8)
Cash acquired |  |  |  |  | (0.5)
Adjusted purchase price, net of cash acquired | $ 146.6 |  |  |  |
Accounts receivable |  |  |  |  | 1.1
Inventories |  |  |  |  | 4.8
Prepaid expenses and other |  |  |  |  | 3.6
Property, plant and equipment |  |  |  |  | 38.4
Intangible assets |  |  |  |  | 31.7
Total assets acquired |  |  |  |  | 79.6
Accounts payable |  |  |  |  | 10.8
Accrued expenses and other |  |  |  |  | 2.7
Deferred income tax liabilities |  |  |  |  | 1.2
Net assets acquired |  |  |  |  | 64.9
Goodwill |  |  |  |  | $ 81.7

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