Commitments (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 item
Payments Due by Period
Total	$ 100,084
2013	82,570
2014-2016	17,514
Manufacturing agreements
Payments Due by Period
Total	48,629
2013	48,318
2014-2016	311
Raw material supplies
Payments Due by Period
Total	26,600
Commercial inventory
Payments Due by Period
Total	12,500
MTPC (avanafil product testing and finished goods)
Payments Due by Period
Total	9,500
Other agreements
Payments Due by Period
Total	51,455
2013	34,252
2014-2016	17,203
Sales Team Agreement
Payments Due by Period
Total	44,200
Number of consecutive extension periods	2
Extension term of the agreement	12 months
Number of full-time sales representatives provided	150
Number of full-time field liaison managers provided	3
Number of account managers provided	1
Other various sales and marketing services and research and development agreements
Payments Due by Period
Total	$ 7,300