Contingencies	12 Months Ended
Contingencies	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Contingent Liability In February 2021, the Company entered into an agreement with SDG&E to sell 900 MHz Broadband Spectrum throughout SDG&E’s California service territory, including San Diego and Imperial Counties and portions of Orange County (the “SDG&E Agreement”), for a total payment of $50.0 million. The SDG&E Agreement will support SDG&E’s deployment of a private LTE network for its California service territory, with a population of approximately 3.6 million people. Delivery of the relevant 900 MHz Broadband Spectrum and the associated broadband licenses by county to SDG&E is expected to commence in fiscal year 2023 and is scheduled for completion before the end of fiscal year 2024. The total payment of $50.0 million is comprised of an initial payment of $20.0 million, received in February 2021, and the remaining $30.0 million payment, which is due through fiscal year 2024 as the Company delivers the relevant cleared 900 MHz Broadband Spectrum and the associated broadband licenses to SDG&E. The SDG&E Agreement is subject to customary provisions regarding remedies, including reduced payment amounts and/ or refund of amounts paid and termination rights, if a party fails to perform its contractual obligations. A gain or loss on the sale of spectrum will be recognized for each county once the Company delivers the cleared 900 MHz Broadband Spectrum and the associated broadband licenses to SDG&E. As the Company is required to refund the initial payment in the event of termination or non-delivery of the 900 MHz Broadband Spectrum, it recorded $20.0 million for the upfront payment received from SDG&E in February 2021 as contingent liability in the Consolidated Balance Sheet as of March 31, 2022 and 2021, respectively. Litigation In addition to commitments and obligations in the ordinary course of business as reflected in the lease footnote above, the Company may be subject, from time to time, to various claims and pending and potential legal actions arising out of the normal conduct of its business. The Company assesses contingencies to determine the degree of probability and range of possible loss for potential accrual in its financial statements. Because litigation is inherently unpredictable and unfavorable resolutions could occur, assessing litigation contingencies is highly subjective and requires judgments about future events. When evaluating contingencies, the Company may be unable to provide a meaningful estimate due to a number of factors, including the procedural status of the matter in question, the presence of complex or novel legal theories and/or the ongoing discovery and development of information important to the matters. In addition, damage amounts claimed in litigation against it may be unsupported, exaggerated or unrelated to possible outcomes, and as such are not meaningful indicators of its potential liability. The Company regularly reviews contingencies to determine the adequacy of its accruals and related disclosures. During the period presented, the Company has not recorded any accrual for loss contingencies associated with any claims or legal proceedings; determined that an unfavorable outcome is probable or reasonably possible; or determined that the amount or range of any possible loss is reasonably estimable. However, the outcome of legal proceedings and claims brought against the Company is subject to significant uncertainty. Therefore, although management considers the likelihood of a material adverse outcome to be remote, if one or more of these legal matters were resolved against the Company in a reporting period, the Company’s consolidated financial statements for that reporting period could be materially adversely affected. COVID-19 Pandemic In March 2020, the World Health Organization declared the outbreak of a novel coronavirus (“COVID-19”) as a pandemic and COVID-19 continues to cause significant disruptions throughout the World. The ultimate extent of the impact of COVID-19 on future financial performance of the Company will depend on ongoing developments, all of which remain uncertain and cannot be predicted. The Company continues to closely monitor the risks posed by COVID-19 and adjusts its practices accordingly. In December 2020, the Company deferred payroll taxes under the Coronavirus Aid Relief and Economic Security Act, which was signed into law on March 27, 2020. The deferral amounted to approximately $0.3 million, which has assisted the Company in managing the financial impact caused by the pandemic. Of the total deferred, approximately $0.2 million was remitted to the IRS during Fiscal 2022, with the remaining amount due by December 31, 2022.