Balance Sheet Details

9 Months Ended

Sep. 25, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Restricted Cash

The Company’s restricted cash balance is held in deposit accounts at various banks globally. These amounts primarily collateralize the Company’s issuances of standby letters of credit and bank guarantees.

Allowance for Credit Losses

The following table provides a rollforward of the allowance for doubtful accounts for accounts receivable for the nine months ended September 25, 2021 (in thousands):


Balance as of December 26, 2020	$	2,912
Additions(1)	1,019
Write offs(2)	(2,274)

Other(3)	(33)
Balance as of September 25, 2021	$	1,624

(1) The new additions during the nine months ended September 25, 2021 are primarily due to specific reserves.

(2) The write offs during the nine months ended September 25, 2021 are primarily amounts fully reserved previously.

(3) Primarily represents foreign currency translation adjustments.

Selected Balance Sheet Items

The following table provides details of selected balance sheet items (in thousands):


	September 25, 2021		December 26, 2020
Inventory
Raw materials	$	37,429	$	34,693
Work in process	54,384		55,835
Finished goods	197,800		178,779
Total inventory	$	289,613	$	269,307
Property, plant and equipment, net
Computer hardware	$	45,257	$	34,502
Computer software(1)	42,968		44,397
Laboratory and manufacturing equipment	289,950		333,955
Land and building	15,211		12,349
Furniture and fixtures	2,167		3,445
Leasehold and building improvements	49,919		66,014
Construction in progress	20,220		39,727
Subtotal	465,692		534,389
Less accumulated depreciation and amortization(2)	(310,172)		(381,256)
Total property, plant and equipment, net	$	155,520	$	153,133
Accrued expenses and other current liabilities
Loss contingency related to non-cancelable purchase commitments	$	28,271	$	18,848

Taxes payable	34,402		45,884

Short-term operating and financing lease liability	17,911		16,023

Restructuring accrual	10,817		9,292
Other accrued expenses and other current liabilities	53,993		60,503
Total accrued expenses	$	145,394	$	150,550

(1)Included in computer software at September 25, 2021 and December 26, 2020 were $23.4 million and $25.4 million, respectively, related to enterprise resource planning (“ERP”) systems that the Company implemented. The unamortized ERP costs at September 25, 2021 and December 26, 2020 were $7.9 million and $10.8 million, respectively. Also included in computer software at September 25, 2021 and December 26, 2020 was $19.5 million and $17.0 million, respectively, related to term licenses. The unamortized term license costs at September 25, 2021 and December 26, 2020 was $9.6 million and $12.0 million, respectively.

(2)Depreciation expense was $12.0 million and $10.9 million (which includes depreciation of capitalized ERP cost of $0.7 million for both periods) for the three months ended September 25, 2021 and September 26, 2020, respectively. Depreciation expense was $33.2 million and $35.8 million (which includes depreciation of capitalized ERP cost of $1.9 million and $2.0 million, respectively) for the nine months ended September 25, 2021 and September 26, 2020, respectively.