Long-Term Debt - Schedule Of Consolidated Interest Coverage Ratio (Details)	Jun. 30, 2017
December 31, 2017 and Each Fiscal Quarter Thereafter [Member] \| Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Minimum Consolidated Interest Coverage Ratio	2.50

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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Balance Type:	na
Period Type:	duration