ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Cash and Cash Equivalents, Concentrations of Risk, Financial Instruments, Financing Receivables and Operating Leases (Details) - USD ($)
$ in Millions |
12 Months Ended |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
| CASH AND CASH EQUIVALENTS [Abstract] |
|
|
|
| Amounts held in trust for third party recipients |
$ 0.7
|
$ 0.0
|
|
| Minimum [Member] |
|
|
|
| FINANCING RECEIVABLES AND OPERATING LEASES [Abstract] |
|
|
|
| Financing receivables and operating leases term |
2 years
|
|
|
| Financing receivables and operating leases, term range |
3 years
|
|
|
| Estimated useful life |
3 years
|
|
|
| Maximum [Member] |
|
|
|
| FINANCING RECEIVABLES AND OPERATING LEASES [Abstract] |
|
|
|
| Financing receivables and operating leases term |
6 years
|
|
|
| Financing receivables and operating leases, term range |
4 years
|
|
|
| Estimated useful life |
7 years
|
|
|
| Information Technology Equipment [Member] |
|
|
|
| FINANCING RECEIVABLES AND OPERATING LEASES [Abstract] |
|
|
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| Estimated useful life |
4 years
|
|
|
| Carrying Amount [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes receivable |
$ 112.6
|
54.8
|
|
| Carrying Amount [Member] | Recourse [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes payable |
18.1
|
37.3
|
|
| Carrying Amount [Member] | Non-recourse [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes payable |
56.1
|
35.5
|
|
| Fair Value [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes receivable |
113.2
|
55.4
|
|
| Fair Value [Member] | Recourse [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes payable |
18.1
|
37.3
|
|
| Fair Value [Member] | Non-recourse [Member] |
|
|
|
| FINANCIAL INSTRUMENTS [Abstract] |
|
|
|
| Notes payable |
$ 56.3
|
$ 35.5
|
|
| Accounts Receivable-Trade [Member] | Customer Concentration Risk [Member] | Verizon Communications Inc. [Member] | Technology Segment [Member] |
|
|
|
| CONCENTRATIONS OF RISK [Abstract] |
|
|
|
| Percentage of concentration risk |
20.00%
|
20.00%
|
|
| Net Sales [Member] | Customer Concentration Risk [Member] | Verizon Communications Inc. [Member] | Technology Segment [Member] |
|
|
|
| CONCENTRATIONS OF RISK [Abstract] |
|
|
|
| Percentage of concentration risk |
19.00%
|
15.00%
|
|
| Net Sales [Member] | Product Concentration Risk [Member] | Cisco Systems [Member] | Technology Segment [Member] |
|
|
|
| CONCENTRATIONS OF RISK [Abstract] |
|
|
|
| Percentage of concentration risk |
36.00%
|
40.00%
|
42.00%
|