Discontinued Operations Narrative (Details)	6 Months Ended
Jun. 30, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Expenses related to sale	$ 8,801,000
Expenses related to sale of business paid	$ 8,405,000

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.

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Period Type:	duration