Quarterly Results (Unaudited) (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014 foreign_subsidiary
Condensed Financial Statements, Captions [Line Items]
Valuation allowance	$ 48,453,000	$ 52,002,000	$ 48,453,000		$ 52,002,000
Internally developed software assets [Member]
Condensed Financial Statements, Captions [Line Items]
Impairment charges	4,200,000	0	4,200,000	0
Foreign tax authority [Member]
Condensed Financial Statements, Captions [Line Items]
Valuation allowance		$ 2,300,000			$ 2,300,000
Number of foreign subsidiaries, valuation allowance recorded					1