Basis of Presentation Pending Adoption of Recent Accounting Pronouncements (Details)	9 Months Ended
Sep. 30, 2017
Revenue from Contract with Customers [Abstract]
Revenue, Judgment	0.10%

Qualitative Assessment of Revenue Subject to the new Revenue Recognition Standard; recognition of which will not change upon adoption of 606

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration