Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue From Contract With Customer [Abstract]

Summarize Activity of the Net Product Revenue Allowance and Reserve Categories

The following tables summarize activity in each of the net product revenue allowance and reserve categories described above for the three months ended March 31, 2019 and 2018:

In thousands	Trade Allowances			Rebates, Chargebacks and Discounts			Product Returns			Other Incentives			Total
Balance as of December 31, 2018	$	19,495		$	41,634		$	2,948		$	1,167		$	65,244
Provision related to current period sales		15,881			70,410			418			8,286			94,995
Provision related to prior period sales		—			—			—			—			—
Credits/payments made for current period sales		(2,624	)		(18,494	)		—			(6,891	)		(28,009	)
Credits/payments made for prior period sales		(8,760	)		(37,521	)		(179	)		(1,199	)		(47,659	)
Balance as of March 31, 2019	$	23,992		$	56,029		$	3,187		$	1,363		$	84,571

In thousands	Trade Allowances			Rebates, Chargebacks and Discounts			Product Returns			Other Incentives			Total
Balance as of December 31, 2017	$	12,035		$	32,064		$	1,887		$	2,107		$	48,093
Provision related to current period sales		8,506			32,947			222			4,185			45,860
Provision related to prior period sales		(200	)		(435	)		—			(69	)		(704	)
Credits/payments made for current period sales		(875	)		(10,487	)		—			(1,799	)		(13,161	)
Credits/payments made for prior period sales		(1,336	)		(20,994	)		(25	)		(2,296	)		(24,651	)
Balance as of March 31, 2018	$	18,130		$	33,095		$	2,084		$	2,128		$	55,437