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Revenues Revenue Recognition (Policies)	12 Months Ended
	Dec. 31, 2018
Revenue Recognition [Abstract]
Consideration Received for Beneficial Interest Obtained for Transferring Financial Asset	Also in connection with the adoption of ASC 606, the Company prospectively records a portion of the consideration received as “Interest income” rather than “Revenues” in the accompanying consolidated statements of operations, due to the embedded financing element within the related contract.

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Recognition of Consideration Received [Policy Text Block]

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