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Acquisitions - Summary of Preliminary Estimated Fair Values of Faiveley Transport Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 21, 2017
--- | --- | --- | ---
Assets acquired |  |  |
Goodwill | $ 2,528,819 | $ 2,460,103 |
Faiveley Transport |  |  |
Assets acquired |  |  |
Cash and cash equivalents |  |  | $ 178,318
Accounts receivable |  |  | 439,631
Inventories |  |  | 205,649
Other current assets |  |  | 70,930
Property, plant & equipment |  |  | 148,746
Goodwill |  |  | 1,262,350
Other assets |  |  | 184,564
Total assets acquired |  |  | 3,071,246
Liabilities assumed |  |  |
Current liabilities |  |  | 819,493
Debt |  |  | 409,899
Other noncurrent liabilities |  |  | 335,039
Total liabilities assumed |  |  | 1,564,431
Net assets acquired |  |  | 1,506,815
Faiveley Transport | Trade Names |  |  |
Assets acquired |  |  |
Intangible assets acquired |  |  | 346,328
Faiveley Transport | Customer Relationships |  |  |
Assets acquired |  |  |
Intangible assets acquired |  |  | 233,529
Faiveley Transport | Patents |  |  |
Assets acquired |  |  |
Intangible assets acquired |  |  | $ 1,201

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 + Details
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