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Property, Plant and Equipment and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Property, Plant and Equipment [Line Items] |  |  |  |  |
Depreciation expense | $ 169.3 |  | $ 194.3 | $ 370.0 | $ 388.7
Weighted average discount rate percentage | 14.00% |  |  | 14.00% |
Non-cash pre-tax impairments |  |  |  | $ 2,442.8 |
Estimated amortization expense for intangible assets [Abstract] |  |  |  |  |
2020 | $ 144.0 |  |  | 144.0 |
2021 | 130.9 |  |  | 130.9 |
2022 | 122.7 |  |  | 122.7 |
2023 | 117.5 |  |  | 117.5 |
2024 | $ 113.7 |  |  | $ 113.7 |
Restatement Adjustment [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Depreciation expense |  | $ 12.5 |  |  |

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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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