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Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies We are subject to legal actions arising in the ordinary course of business. In management’s opinion, we believe we have adequate legal defenses and/or insurance coverage with respect to the eventuality of such actions. We do not believe any settlement or judgment relating to any pending legal action would materially affect our financial position or results of operations.