Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Principles (Surcharges reported gross) (Details)

v3.3.0.814
Business and Summary of Significant Accounting Principles (Surcharges reported gross) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Surcharges reported gross $ 1,426 $ 990 $ 3,960 $ 3,224