Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Basis of Presentation and Summary of Significant Accounting Policies

Schedule of customers representing 10% or more of revenues

	Three Months Ended March 31,
	2016		2015
AmerisourceBergen Drug Corporation	24	%	30	%
McKesson Corporation	<10	%	10	%
Takeda Pharmaceuticals Company Limited	—	%	13	%

Analysis of U.S. product sales allowances and accruals

	Three Months Ended March 31,
	2016		2015
Gross U.S. product sales	$	152,192	$	125,517
Provision for U.S. product sales allowances and accruals:
Contractual adjustments		45,581		35,134
Governmental rebates		17,047		12,968
Total provision for U.S. product sales allowances and accruals		62,628		48,102
U.S. product sales, net	$	89,564	$	77,415