CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
OPERATING ACTIVITIES
Net income	$ 888,500	$ 814,680
Reconciliation of net income to net cash provided by (used in) operating activities:
Depreciation, amortization, and accretion	57,141	50,911
Amortization on cloud computing arrangements	1,677	1,858
Bad debt expense	3,808	5,294
Deferred tax (benefit) expense	(13,714)	5,791
Stock-based compensation	31,703	28,774
Loss on disposal of assets	990	3,022
Impairment of property and equipment and cloud computing arrangements	127	3,699
Changes in operating assets and liabilities:
Trade accounts receivable, net	(15,262)	(11,809)
Inventories	(138,259)	(105,787)
Prepaid expenses and other current assets	(105,415)	2,502
Income tax receivable	28,929	16,364
Net operating lease assets and lease liabilities	1,828	(2,791)
Other assets	(23,873)	(6,161)
Trade accounts payable	185,956	206,893
Other accrued expenses	54,201	64,307
Income tax payable	118,817	46,781
Other long-term liabilities	8,959	(6,813)
Net cash provided by operating activities	1,086,113	1,117,515
INVESTING ACTIVITIES
Purchases of property and equipment	(67,541)	(69,729)
Proceeds from sale of assets	11	11,168
Net cash used in investing activities	(67,530)	(58,561)
FINANCING ACTIVITIES
Proceeds from issuance of stock	2,228	1,638
Proceeds from exercise of stock options	0	968
Repurchases of common stock	(813,488)	(301,011)
Cash paid for excise taxes related to repurchases of common stock	(5,042)	(3,985)
Cash paid for shares withheld for taxes	(8,069)	(14,248)
Net cash used in financing activities	(824,371)	(316,638)
Effect of foreign currency exchange rates on cash and cash equivalents	3,346	(3,444)
Net change in cash and cash equivalents	197,558	738,872
Cash and cash equivalents at beginning of period	1,889,188	1,502,051
Cash and cash equivalents at end of period	2,086,746	2,240,923
Cash paid during the period
Income taxes	136,879	182,282
Interest	1,745	1,246
Operating leases	67,353	52,165
Non-cash investing activities
Changes in trade accounts payable and other accrued expenses for purchases of property and equipment	(5,414)	979
Accrued for asset retirement obligation assets related to leasehold improvements	2,408	1,399
Non-cash financing activities
Accrued excise taxes related to repurchases of common stock	$ 7,807	$ 2,406