Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Current assets:
Cash and cash equivalents	$ 363,355	$ 389,674
Marketable securities and investments	37,512	33,459
Accounts receivable and unbilled costs, net of allowance for credit allowances of $64 and $479 at September 30, 2024 and March 31, 2024, respectively	118,632	192,096
Inventories and deferred costs	16,388	14,095
Prepaid income taxes	15,391	11,076
Prepaid expenses and other current assets	32,435	32,094
Total current assets	583,713	672,494
Fixed assets, net	23,244	26,487
Operating lease right-of-use assets	38,498	42,486
Goodwill	1,073,355	1,502,820
Intangible assets, net	285,605	308,659
Deferred income taxes	54,978	30,767
Long-term marketable securities	1,009	994
Other assets	10,270	10,595
Total assets	2,070,672	2,595,302
Current liabilities:
Accounts payable	13,911	14,506
Accrued compensation	41,485	51,362
Accrued other	15,192	14,665
Income taxes payable	764	764
Deferred revenue and customer deposits	263,874	301,806
Current portion of operating lease liabilities	11,876	11,979
Total current liabilities	347,102	395,082
Other long-term liabilities	6,622	7,055
Deferred tax liability	3,955	4,374
Accrued long-term retirement benefits	29,253	28,413
Long-term deferred revenue and customer deposits	115,825	130,212
Operating lease liabilities, net of current portion	33,527	38,101
Long-term debt	75,000	100,000
Total liabilities	611,284	703,237
Commitments and contingencies (Note 14)
Preferred stock, $0.001 par value:
5,000,000 shares authorized; no shares issued or outstanding at September 30, 2024 and March 31, 2024	0	0
Common stock, $0.001 par value:
300,000,000 shares authorized; 133,671,490 and 131,316,309 shares issued and 71,715,229 and 71,404,216 shares outstanding at September 30, 2024 and March 31, 2024, respectively	133	131
Additional paid-in capital	3,221,213	3,181,366
Accumulated other comprehensive income	4,151	3,572
Treasury stock at cost, 61,956,261 and 59,912,093 shares at September 30, 2024 and March 31, 2024, respectively	(1,654,239)	(1,615,483)
(Accumulated deficit) retained earnings	(111,870)	322,479
Total stockholders' equity	1,459,388	1,892,065
Total liabilities and stockholders' equity	$ 2,070,672	$ 2,595,302