Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 3,326,000	$ 4,014,000	$ 7,537,000	$ 5,618,000
Effective income tax rate			10.87%	8.77%
Operating loss carryforwards, domestic	44,500,000		44,500,000
Unrecognized Tax Benefits	16,608,000		16,608,000		12,742,000	5,925,000
Unrecognized tax benefits, period increase (decrease)			3,866,000	2,349,000
Unrecognized tax benefits, income tax penalties and interest expense			$ 2,360,000		$ 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%