Operating Segments and Related Information Narrative Accounts Receivable (Details)	Sep. 30, 2014 customers	Dec. 31, 2013 customers
Accounts, Notes, Loans and Financing Receivable [Line Items]
The number of customers that account for 10% or greater of the company's accounts receivables	3	2
Customer A
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total trade receivables	24.00%	17.00%
Customer E [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total trade receivables	20.00%
Customer C
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total trade receivables	31.00%	36.00%