Recently Issued Accounting Standards (Policies)	6 Months Ended
Jun. 30, 2017
Recently Issued Accounting Standards [Abstract]
Recently Issued Accounting Standards	During the six months ended June 30, 2017, there were no additions to or changes in the critical accounting policies disclosed in the 2016 Form 10-K.

Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.

No definition available.

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