Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Basis of Presentation (Details) - USD ($)	3 Months Ended	9 Months Ended
Basis of Presentation (Details) - USD ($)	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Cash Flow Depreciation presentation reclassification [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash Flow Depreciation Reclassification			$ 8,100,000
Cost of sales – services
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales - services error correction	$ 1,900,000	$ 3,900,000	$ 5,900,000