Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Summary of Impact of Accounts Receivable Reserves on Gross Trade Accounts Receivable Balances

The following table summarizes the impact of accounts receivable reserves on the gross trade accounts receivable balances as of March 31, 2021 and December 31, 2020:

In thousands	March 31, 2021			December 31, 2020
Gross trade accounts receivable	$	220,215		$	203,875
Trade allowances		(54,708	)		(36,242	)
Chargebacks		(13,287	)		(12,114	)
Allowance for doubtful accounts		(945	)		(945	)
Accounts receivable, net	$	151,275		$	154,574

Calculation of Net Loss and Number of Shares Used to Compute Basic and Diluted Net Loss per Share

The calculation of net loss and the number of shares used to compute basic and diluted net loss per share for the three months ended March 31, 2021 and 2020 are as follows:

	Three months ended March 31,
In thousands	2021			2020
Net loss—basic and diluted	$	(1,626	)	$	(20,553	)
Weighted average shares outstanding—basic and diluted		394,638			361,136
Net loss per share—basic and diluted	$	(0.00	)	$	(0.06	)

Anti-Dilutive Securities Not Included in the Computation of Net Loss or Earnings per Share

For the three months ended March 31, 2021 and 2020, the following potentially dilutive securities were not included in the computation of net loss per share because the effect would be anti-dilutive:

	Three months ended March 31,
In thousands	2021		2020
Stock options		19,372		17,207
Restricted stock and restricted stock units		10,252		7,033
Preferred stock (if converted)		—		28,932

Estimated Fair Value of Assets and Liability

The following tables present information about the estimated fair value of the Company’s assets and liabilities as of March 31, 2021 and December 31, 2020 and indicate the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value:

	March 31, 2021
In thousands	Total		Level 1		Level 2		Level 3
Asset:
Money Market Fund	$	177,426	$	177,426	$	—	$	—
U.S. Treasury Shares		31,673		31,673		—		—
Corporate Bonds		130,114		—		130,114		—
Commercial Paper		47,517		—		47,517		—
Agency Securities		20,708		—		20,708		—
Repo Securities		10,000		—		10,000		—
Asset Backed Securities		5,411		—		5,411		—
Certificate of Deposit		6,124		—		6,124		—
Non-US Government		5,234				5,234
Total	$	434,207	$	209,099	$	225,108	$	—

	December 31, 2020
In thousands	Total		Level 1		Level 2		Level 3
Asset:
Money Market Fund	$	88,266	$	88,266	$	—	$	—
U.S. Treasury Shares		48,356		48,356		—		—
Corporate Bonds		179,864		—		179,864		—
Commercial Paper		106,650		—		106,650		—
Agency Securities		20,782		—		20,782		—
Repo Securities		10,000		—		10,000		—
Asset Backed Securities		8,599		—		8,599		—
Certificate of Deposit		6,125		—		6,125		—
Non-US Government		5,240		—		5,240		—
Total	$	473,882	$	136,622	$	337,260	$	—