Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 4,010,000	$ 1,133,000	$ 11,547,000	$ 6,751,000
Effective income tax rate			9.95%	8.98%
Unrecognized Tax Benefits	22,079,000		22,079,000		12,742,000	5,925,000
Unrecognized tax benefits, period increase (decrease)			9,337,000	3,405,000
Unrecognized tax benefits, income tax penalties and interest expense			2,540,000		1,050,000
India [Member]
Operating Loss Carryforwards [Line Items]
Foreign tax holiday (percentage)			50.00%
Foreign statutory income tax rate			33.99%
Foreign income tax holiday, term			5 years
Singapore [Member]
Operating Loss Carryforwards [Line Items]
Foreign statutory income tax rate			17.00%
Foreign effective income tax rate			10.00%
UNITED KINGDOM
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	42,000,000		42,000,000
United States
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 46,000,000		$ 46,000,000