Annual report pursuant to Section 13 and 15(d)

Business and Summary of Significant Accounting Principles (Surcharges Reported Gross) (Details)

v2.4.1.9
Business and Summary of Significant Accounting Principles (Surcharges Reported Gross) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accounting Policies [Abstract]      
Surcharges reported gross $ 4,252us-gaap_ExciseAndSalesTaxes $ 4,644us-gaap_ExciseAndSalesTaxes $ 5,401us-gaap_ExciseAndSalesTaxes