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Related Party Transactions (Narratives) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member] |  |
Property Management Fee [Abstract] |  |
Property Management Fee Revenue | $ 11.3 | $ 10.1
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member] | Minimum [Member] |  |
Property Management Fee [Abstract] |  |
Management fee rate | 4.00% |
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member] | Maximum [Member] |  |
Property Management Fee [Abstract] |  |
Management fee rate | 10.00% |
Sac Holdings, Four Sac, Five Sac, Galaxy, and Private Mini [Member] |  |
Related party costs and expenses: |  |
Revenue, excluding dealer agreement commissions and expenses | $ 7.2 |
Cash flow, related party | 6.4 |
Revenue generated by the dealer agreement from related parties | $ 108.6 |

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- Definition Cash generated from agreements and notes with SAC Holdings, Four SAC, Five SAC, Galaxy and Private Mini, excluding Dealer Agreements. + References No definition available. + Details
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- Definition Amount of revenue earned from products and services provided under the terms of contract, including, but not limited to, government contracts and construction contracts, classified as other. + References No definition available. + Details
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- Details
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- Details
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