Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Related Party Transaction [Line Items]
Joint venture, percent ownership of Cadila	20.00%
Purchase obligation under master services agreement	$ 7,500
Amount incurred under master services agreement	$ 600
Cadila [Member]
Related Party Transaction [Line Items]
Joint venture, percent ownership of Cadila	80.00%
Subsidiary of Cadila [Member]
Related Party Transaction [Line Items]
Common stock, shares outstanding	12,500,000