Business Combination and Asset Acquisition Consideration Transferred (Details) (Gentium [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
	Jan. 23, 2014
Business Acquisition [Line Items]
Cash consideration for shares acquired in initial tender offer period	$ 697,917
Total acquisition consideration	857,086
American Depositary Shares [Member]
Business Acquisition [Line Items]
Liability for shares committed under guaranteed delivery procedures	76,666
Ordinary Options [Member]
Business Acquisition [Line Items]
Liability for shares committed under guaranteed delivery procedures	$ 82,503