Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Taxes [Line Items]
Statutory tax rate	33.30%	33.30%
International tax rates differential	190.80%	4.90%
Valuation allowance on net operating losses	317.40%	(4.50%)
Nondeductible contingent consideration	362.20%	9.70%
Nondeductible stock-based compensation	28.50%	1.30%
Deferred charge from IP transfer	64.60%	1.20%
State and local income taxes	15.80%	0.50%
Other	(79.20%)	0.90%
Effective income tax rate	933.50%	47.30%
Income tax provision - at Statutory tax rate	$ 255	$ 7,366
International tax rates differential	1,460	1,093
Valuation allowance on net operating losses	2,428	(1,006)
Nondeductible contingent consideration	2,771	2,146
Nondeductible stock-based compensation	218	285
Deferred charge from IP transfer	494	264
State and local income taxes	121	119
Other	(606)	206
Income tax provision - at Effective income tax rate	$ 7,141	$ 10,473