Intangible Asset (Tables)

6 Months Ended

Jun. 30, 2017

Intangible Assets

Schedule of finite-lived intangible assets

The following table presents intangible assets as of December 31, 2016 and June 30, 2017 (in thousands):

	December 31,		June 30,
	2016		2017		Estimated useful life
Acquired and in-licensed rights	$	15,000	$	50,000	8-13	Years
Less accumulated amortization		(2,123)		(5,592)
Total intangible assets, net	$	12,877	$	44,408