Balance Sheet Components

3 Months Ended

Jun. 30, 2021

Balance Sheet Related Disclosures [Abstract]

6. Balance Sheet Components

Property and Equipment, Net

Property and equipment, net consisted of the following:


		June 30,			March 31,
		2021			2021
	(in thousands)
Computer and software		$	13,371		$	13,252
Laboratory equipment and software			49,379			48,636
Furniture and office equipment			8,803			8,803
Leasehold improvements			39,715			39,668
Capitalized asset retirement obligations			853		853
Property and equipment, gross			112,121			111,212
Less: accumulated depreciation and amortization			(54,421	)		(50,328	)
Property and equipment, net		$	57,700		$	60,884

Depreciation and amortization expense was $4.1 million and $5.1 million for three months ended June 30, 2021 and 2020, respectively.

Internal-use Software, Net


	June 30,			March 31,
	2021			2021
	(in thousands)
Capitalized internal-use software	$	10,088		$	9,200
Less: accumulated amortization		(2,956	)		(2,311	)
Internal-use software, net	$	7,132		$	6,889

For the three months ended June 30, 2021 and 2020, amortization expense related to internal-use software was $0.6 million and $0.3 million, respectively, including approximately $0.1 million and $0.1 million, respectively, of stock-based compensation expense. Impairment to internal-use software was nil and $0.2 million for the three months ended June 30, 2021 and 2020.

Accrued Expense and Other Current Liabilities

Accrued expense and other current liabilities consisted of the following:


	June 30,		March 31,
	2021		2021
	(in thousands)
Accrued payables	$	21,371	$	19,869
Accrued compensation and benefits		11,281		11,749
Accrued taxes		190	166
Other		187	169
Total accrued expenses and other current liabilities	$	33,029	$	31,953