Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Financial Instruments Financial Assets Balance Sheet Groupings [Abstract]
Accounts receivable, transferred to third party	$ 3.0	$ 6.9
Proceeds from sale and collection of receivables	$ 3.0	$ 6.9

The cash inflow associated with the proceeds from sale and collection of receivables during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromSaleAndCollectionOfReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration