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Pre-Production Costs Related to Long-Term Supply Agreements | 6 Months Ended
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Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Pre-Production Costs Related to Long-Term Supply Agreements | Pre-Production Costs Related to Long-Term Supply Agreements The Company incurs pre-production engineering and development ("E&D") and tooling costs related to the products produced for its customers under long-term supply agreements. The Company expenses all pre-production E&D costs for which reimbursement is not contractually guaranteed by the customer. In addition, the Company expenses all pre-production tooling costs related to customer-owned tools for which reimbursement is not contractually guaranteed by the customer or for which the Company does not have a non-cancelable right to use the tooling. During the first six months of 2018 and 2017, the Company capitalized $67.8 million and $137.4 million, respectively, of pre-production E&D costs for which reimbursement is contractually guaranteed by the customer. During the first six months of 2018 and 2017, the Company also capitalized $100.3 million and $57.6 million, respectively, of pre-production tooling costs related to customer-owned tools for which reimbursement is contractually guaranteed by the customer or for which the Company has a non-cancelable right to use the tooling. These amounts are included in other current and long-term assets in the accompanying condensed consolidated balance sheets. During the first six months of 2018 and 2017, the Company collected $165.4 million and $171.0 million, respectively, of cash related to E&D and tooling costs. The classification of recoverable customer E&D and tooling costs related to long-term supply agreements is shown below (in millions):
| June 30, 2018 |  | December 31, 2017
Current | $ | 229.9 |  |  | $ | 248.1 |
Long-term | 75.0 |  |  | 59.3 |
Recoverable customer E&D and tooling | $ | 304.9 |  |  | $ | 307.4 |

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