Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue

The following table summarizes revenue by revenue source as follows:

	Year Ended December 31,
Major Products/Service Lines (in thousands)	2021		2020		2019
Product revenue, net(1)	$	400,356	$	327,695	$	345,276
License and royalty revenues	24,852		11,715		2,061
Total revenues	$	425,208	$	339,410	$	347,337

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(1)The Company’s principal products include DEFINITY, TechneLite and PYLARIFY and are categorized within product revenue, net. The Company applies the same revenue recognition policies and judgments for all of its principal products.

Revenue by product category on a net basis is as follows:

	Year Ended December 31,
(in thousands)	2021		2020(1)		2019(1)
DEFINITY	$	232,759	$	195,865	$	202,398
TechneLite	91,293		84,945		85,465
Other precision diagnostics	26,973		36,824		49,243
Total precision diagnostics	351,025		317,634		337,106
PYLARIFY	43,414		—		—
Other radiopharmaceutical oncology	5,473		10,022		8,655
Total radiopharmaceutical oncology	48,887		10,022		8,655
Strategic Partnerships and other revenue	25,296		11,754		1,576
Total revenues	$	425,208	$	339,410	$	347,337

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(1)The Company reclassified aggregate rebates and allowances of $19.1 million and $16.6 million for the years ended December 31, 2020 and 2019, respectively, which included $17.5 million and $15.1 million for DEFINITY, $1.3 million and $1.1 million for TechneLite and $0.3 million for other precision diagnostics.

Schedule of valuation and qualifying accounts

An analysis of the amount of, and change in, reserves is summarized as follows:

(in thousands)	Rebates and Allowances
Balance, January 1, 2020	$	6,985
Provision related to current period revenues	19,675
Adjustments relating to prior period revenues	(604)
Payments or credits made during the period	(16,706)
Balance, December 31, 2020	9,350
Provision related to current period revenues	25,772
Adjustments relating to prior period revenues	14
Payments or credits made during the period	(24,159)
Balance, December 31, 2021	$	10,977

Schedule of contracts with customer

The Company recognized certain revenues as follows:

	Year Ended December 31,
(in thousands)	2021		2020
Amounts included in the contract liability at the beginning of the period	$	33	$	33