CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
OPERATING ACTIVITIES
Net income	$ 632,018	$ 425,035
Reconciliation of net income to net cash provided by (used in) operating activities:
Depreciation, amortization, and accretion	40,901	35,089
Amortization on cloud computing arrangements	1,651	1,572
Loss on extinguishment of debt	0	226
Bad debt expense	2,212	3,692
Deferred tax expense (benefit)	2,850	(343)
Stock-based compensation	28,687	18,130
Loss on disposal of long-lived assets	235	18
Impairment of operating lease and other long-lived assets	1,129	2,085
Changes in operating assets and liabilities:
Trade accounts receivable, net	(32,379)	(27,345)
Inventories	(6,111)	(216,569)
Prepaid expenses and other current assets	(22,498)	(47,782)
Income tax receivable	(10,585)	13,712
Net operating lease assets and lease liabilities	8,188	(6,339)
Other assets	(6,595)	14,641
Trade accounts payable	242,496	161,512
Other accrued expenses	92,042	42,681
Income tax payable	92,028	63,936
Other long-term liabilities	(4,411)	(6,068)
Net cash provided by operating activities	1,061,858	477,883
INVESTING ACTIVITIES
Purchases of property and equipment	(74,078)	(56,059)
Proceeds from sales of property and equipment	34	6
Net cash used in investing activities	(74,044)	(56,053)
FINANCING ACTIVITIES
Loan origination costs on revolving credit facilities	0	(1,537)
Proceeds from issuance of stock	1,165	1,046
Proceeds from exercise of stock options	2,525	1,870
Repurchases of common stock	(310,635)	(194,862)
Cash paid for shares withheld for taxes	(9,153)	(5,414)
Net cash used in financing activities	(316,098)	(198,897)
Effect of foreign currency exchange rates on cash and cash equivalents	(2,709)	(8,617)
Net change in cash and cash equivalents	669,007	214,316
Cash and cash equivalents at beginning of period	981,795	843,527
Cash and cash equivalents at end of period	1,650,802	1,057,843
Cash paid during the period
Income taxes, net of refunds of $237 and $1,286, as of December 31, 2023, and 2022, respectively	108,202	59,418
Interest	1,358	1,415
Operating leases	49,283	45,244
Non-cash investing activities
Changes in accounts payable and accrued expenses for purchases of property and equipment	(10,162)	(2,696)
Accrued for asset retirement obligation assets related to leasehold improvements	1,094	1,051
Leasehold improvements acquired through tenant allowances	8,127	0
Non-cash financing activities
Accrued excise taxes related to repurchases of common stock	$ 2,649	$ 0