Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregated revenue

The following table provides information about disaggregated revenue by products and services (in thousands):

	Three Months Ended March 31,
	2018		2017
Product sales, net
Makena	$	89,983	$	86,455
Feraheme	25,135		25,922
Intrarosa	2,165		—
MuGard	65		140
Total	$	117,348	$	112,517
Service revenues, net	$	28,969	$	26,931

Total gross product sales were offset by product sales allowances and accruals for the three months ended March 31, 2018 and 2017 as follows (in thousands, except for percentages):

	Three Months Ended March 31,
	2018		Percent of gross product sales		2017		Percent of gross product sales
Gross product sales	$	239,870			$	206,724
Provision for product sales allowances and accruals:
Contractual adjustments	86,144		36	%	69,829		34	%
Governmental rebates	36,378		15	%	24,378		12	%
Total	122,522		51	%	94,207		46	%
Product sales, net	$	117,348			$	112,517

Product revenue allowance and accrual activity

The following table summarizes the product revenue allowance and accrual activity for the three months ended March 31, 2018 (in thousands):

	Contractual			Governmental
	Adjustments			Rebates			Total
Balance at December 31, 2017	$	62,164		$	50,598		$	112,762
Provisions related to current period sales	85,308			31,028			116,336
Adjustments related to prior period sales	836			5,350			6,186
Payments/returns relating to current period sales	(44,633		)	—			(44,633		)
Payments/returns relating to prior period sales	(39,441		)	(25,149		)	(64,590		)
Balance at March 31, 2018	$	64,234		$	61,827		$	126,061

Receivables, assets and liabilities from contracts with customers

The following table provides information about assets and liabilities from contracts with customers (in thousands):

	March 31, 2018		At Adoption
Short-term contract assets (sales commissions)	$	97	$	79
Long-term contract assets (sales commissions)	$	1,700	$	1,400
Short-term contract liabilities (deferred revenue)	$	42,510	$	42,494
Long-term contract liabilities (deferred revenue)	$	27,398	$	24,387

The following table presents changes in the Company’s contract assets and liabilities during the three months ended March 31, 2018 (in thousands):

	Balance at January 1, 2018		Additions		Deductions			Balance at March 31, 2018
Contract assets (sales commissions)	$	1,479	$	340	$	(22	)	$	1,797
Contract liabilities (deferred revenue)	$	66,881	$	21,727	$	(18,700	)	$	69,908