Product Revenue Reserves and Allowance

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Product Revenue Reserves and Allowances

To date, the Company’s only source of product revenue has been from the U.S. sales of TYMLOS, which it began shipping to Customers in May 2017. The following table summarizes activity in each of the product revenue allowance and reserve categories for the twelve months ended December 31, 2017 (in thousands):



	Chargebacks, Discounts, and Fees		Government and Other Rebates		Returns		Total
Beginning balance at December 31, 2016	$	—	$	—	$	—	$	—
Provision related to sales in the current year, net of credits and payments	1,986		1,231		421		3,638
Ending balance at December 31, 2017	$	1,986	$	1,231	$	421	$	3,638

Chargebacks, discounts, fees, and returns are recorded as reductions of trade receivables, net on the consolidated balance sheets. Government and other rebates are recoded as a component of accrued expenses and other current liabilities on the consolidated balance sheets. Credits and payments for the twelve months ended December 31, 2017 are not significant.