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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On August 1, 2018, our Board of Directors declared a dividend of $0.06 per share on common shares, payable in cash on September 5, 2018 to shareowners of record at the close of business on August 22, 2018.