CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Cash Flows From Operating Activities:
Net earnings	$ 55,122	$ 50,556	$ 44,747
Adjustments to reconcile net earnings to net cash (used in) provided by operating activities:
Depreciation and amortization	15,827	11,731	15,980
Reserve for credit losses, inventory obsolescence and sales returns	333	749	(216)
Share-based compensation expense	6,464	6,025	5,711
Deferred taxes	(44)	(1,196)	3,515
Payments from lessees directly to lenders-operating leases	(1,445)	(1,724)	(4,646)
Gain on disposal of property, equipment and operating lease equipment	(8,694)	(3,977)	(3,104)
Gain on sale of financing receivables	(6,796)	(7,976)	(7,103)
Other	65	193	185
Changes in:
Accounts receivable-trade	7,593	(25,739)	(8,564)
Accounts receivable-other	(1,011)	8,507	(2,498)
Inventories	54,982	(60,022)	(13,405)
Financing receivables-net	(8,537)	(5,824)	(9,310)
Deferred costs, other intangible assets and other assets	(19,474)	(1,091)	11,189
Accounts payable	258	3,845	(738)
Salaries and commissions payable, deferred revenue and other liabilities	(11,877)	58,959	(17,633)
Net cash provided by operating activities	82,766	33,016	14,110
Cash Flows From Investing Activities:
Proceeds from sale of property, equipment and operating lease equipment	14,403	7,339	6,931
Purchases of property, equipment and operating lease equipment	(7,590)	(9,558)	(14,468)
Purchases of assets to be leased or financed	(6,378)	(9,861)	(11,403)
Issuance of financing receivables	(170,666)	(129,361)	(137,008)
Repayments of financing receivables	78,047	55,093	58,067
Proceeds from sale of financing receivables	72,225	69,146	64,351
Cash used in acquisitions, net of cash acquired	(37,718)	(9,143)	(16,649)
Net cash used in investing activities	(57,677)	(26,345)	(50,179)
Cash Flows From Financing Activities:
Borrowings of non-recourse and recourse notes payable	72,389	73,707	44,807
Repayments of non-recourse and recourse notes payable	(31,302)	(40,414)	(257)
Repurchase of common stock	(35,245)	(30,493)	(11,339)
Dividends paid	0	0	(80)
Payments to settle financing of acquisitions	(2,104)	(1,142)	(1,158)
Net borrowings (repayments) on floor plan facility	(20,503)	6,156	22,475
Net cash (used in) provided by financing activities	(16,765)	7,814	54,448
Effect of exchange rate changes on cash	114	509	212
Net Increase (Decrease) in Cash and Cash Equivalents	8,438	14,994	18,591
Cash and Cash Equivalents, Beginning of Period	109,760	94,766	76,175
Cash and Cash Equivalents, End of Period	118,198	109,760	94,766
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	602	38	84
Cash paid for income taxes	32,134	32,240	29,789
Schedule of Non-Cash Investing and Financing Activities:
Proceeds from sale of property, equipment, and operating lease equipment	591	135	7,650
Purchase of property, equipment, and operating lease equipment	(290)	(2,398)	(10,562)
Purchase of assets to be leased or financed	(5,089)	(6,702)	(9,827)
Issuance of financing receivables	(132,982)	(217,244)	(101,718)
Repayment of financing receivables	13,018	19,421	16,873
Proceeds from sale of financing receivables	143,956	215,227	98,753
Financing of acquisitions	(12,050)	(3,924)	0
Borrowing of non-recourse and recourse notes payable	16,066	35,533	42,840
Repayments of non-recourse and recourse notes payable	(19,372)	(29,217)	(29,059)
Vesting of share-based compensation	12,037	8,013	7,799
Repurchase of common stock	$ (771)	$ 0	$ 0