Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details)	12 Months Ended
Dec. 31, 2018
Buildings \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	12 years
Buildings \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	50 years
Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration