Segments (Narrative) (Details) $ in Millions	9 Months Ended
Sep. 30, 2019 USD ($) segment
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	1
Operating segments [Member] \| Geographic divisions [Member]
Segment Reporting Information [Line Items]
Prior period adjustment \| $	$ 4.3

Amount of each individual error being corrected in the correcting adjustment.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 1.N)
-URI http://asc.fasb.org/extlink&oid=112272810&loc=d3e30840-122693

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