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Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 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 six months ended June 30, 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			37,545				164,871				987				18,625				222,028
Provision related to prior period sales			—				—				—				—				—
Credits/payments made for current period sales			(19,203	)			(98,452	)			5				(16,687	)			(134,337	)
Credits/payments made for prior period sales			(19,325	)			(41,363	)			(471	)			(1,199	)			(62,358	)
Balance as of June 30, 2019		$	18,512			$	66,690			$	3,469			$	1,906			$	90,577

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			19,077				78,051				491				9,234				106,853
Provision related to prior period sales			(400	)			(836	)			—				(69	)			(1,305	)
Credits/payments made for current period sales			(9,097	)			(40,547	)			—				(6,533	)			(56,177	)
Credits/payments made for prior period sales			(5,282	)			(27,028	)			(40	)			(2,297	)			(34,647	)
Balance as of June 30, 2018		$	16,333			$	41,704			$	2,338			$	2,442			$	62,817