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Earnings (Loss) Per Share (Schedule of Anti-dilutive Securities Excluded From Computation of Earnings Per Share) (Details) - shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Earnings Per Share [Abstract]      
Anti-dilutive shares (in shares) 13,300 46,633 194,237