Consolidated Statements of Changes in Shareholders' Equity (Deficit) - Parenthetical - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2019	Mar. 31, 2018	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends	$ 0	$ 0	$ 0.1

Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration