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Cash Overdrafts And Cash Equivalents (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Cash Overdrafts And Cash Equivalents [Abstract]    
Cash overdrafts included in accounts payable $ 3,700,000 $ 10,500,000
Cash equivalents $ 66,000 $ 80,000
Cash equivalents weighted average rate of return 0.08% 0.06%