CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
OPERATING ACTIVITIES
Net income	$ 814,680	$ 632,018
Reconciliation of net income to net cash provided by (used in) operating activities:
Depreciation, amortization, and accretion	50,911	40,901
Amortization on cloud computing arrangements	1,858	1,651
Bad debt expense	5,294	2,212
Deferred tax expense	5,791	2,850
Stock-based compensation	28,774	28,687
Loss on disposal of assets	3,022	235
Impairment of cloud computing arrangements, operating lease, and other long-lived assets	3,699	1,129
Changes in operating assets and liabilities:
Trade accounts receivable, net	(11,809)	(32,379)
Inventories	(105,787)	(6,111)
Prepaid expenses and other current assets	2,502	(22,498)
Income tax receivable	16,364	(10,585)
Net operating lease assets and lease liabilities	(2,791)	8,188
Other assets	(6,161)	(6,595)
Trade accounts payable	206,893	242,496
Other accrued expenses	64,307	92,042
Income tax payable	46,781	92,028
Other long-term liabilities	(6,813)	(4,411)
Net cash provided by operating activities	1,117,515	1,061,858
INVESTING ACTIVITIES
Purchases of property and equipment	(69,729)	(74,078)
Proceeds from sale of assets	11,168	34
Net cash used in investing activities	(58,561)	(74,044)
FINANCING ACTIVITIES
Proceeds from issuance of stock	1,638	1,165
Proceeds from exercise of stock options	968	2,525
Repurchases of common stock	(301,011)	(310,635)
Cash paid for excise taxes related to repurchases of common stock	(3,985)	0
Cash paid for shares withheld for taxes	(14,248)	(9,153)
Net cash used in financing activities	(316,638)	(316,098)
Effect of foreign currency exchange rates on cash and cash equivalents	(3,444)	(2,709)
Net change in cash and cash equivalents	738,872	669,007
Cash and cash equivalents at beginning of period	1,502,051	981,795
Cash and cash equivalents at end of period	2,240,923	1,650,802
Cash paid during the period
Income taxes	182,282	108,439
Interest	1,246	1,358
Operating leases	52,165	49,283
Non-cash investing activities
Changes in trade accounts payable and other accrued expenses for purchases of property and equipment	979	(10,162)
Accrued for asset retirement obligation assets related to leasehold improvements	1,399	1,094
Leasehold improvements acquired through tenant allowances	0	8,127
Non-cash financing activities
Accrued excise taxes related to repurchases of common stock	$ 2,406	$ 2,649