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Leases - Narrative (Details)	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Weighted-average remaining lease terms for operating leases	11 years 7 months 6 days
Weighted-average remaining lease terms for finance leases	12 years 3 months 18 days
Weighted-average discount rates used to determine operating lease liabilities	5.60%
Weighted-average discount rates used to determine finance lease liabilities	9.40%
United States
Lessee, Lease, Description [Line Items]
Initial lease terms	15 years
United Kingdom
Lessee, Lease, Description [Line Items]
Initial lease terms	20 years
Brazil
Lessee, Lease, Description [Line Items]
Initial lease terms	5 years

X

- Definition

Weighted average discount rate for finance lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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