Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income (loss)	$ (76,902)	$ (21,039)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	132,011	102,353
Amortization of intangible assets	42,568	21,734
Stock-based compensation expense	21,752	21,232
Loss on disposition of fixed assets	9,729	11,150
Deferred income taxes and other non-cash adjustments	(24,203)	(7,569)
Increase (decrease) in cash resulting from changes in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	(739)	(27,102)
Inventories	(34,684)	(20,563)
Other assets	(39,564)	9,148
Accounts payable	41,509	16,912
Accrued liabilities	(58,969)	(50,195)
Other liabilities	91,158	(16,424)
Net cash provided by (used in) operating activities	103,666	39,637
Cash flows from investing activities:
Purchase of property, equipment and satellites, and other assets	(374,926)	(270,857)
Payment related to acquisition of business, net of cash acquired	(342,621)
Payments to acquire short-term investments	(52,000)
Net cash provided by (used in) investing activities	(769,547)	(270,857)
Cash flows from financing activities:
Proceeds from debt borrowings	1,334,683	150,000
Payments on debt borrowings	(18,868)	(12,693)
Payments of debt issuance costs	(34,558)	(1,511)
Proceeds from issuance of common stock under equity plans	82	9,626
Purchase of common stock in treasury (immediately retired) related to tax withholdings for stock-based compensation	(2,212)	(505)
Other financing activities	(779)	(706)
Net cash provided by (used in) financing activities	1,278,348	144,211
Effect of exchange rate changes on cash	617	(1,930)
Net increase (decrease) in cash and cash equivalents and restricted cash	613,084	(88,939)
Cash and cash equivalents and restricted cash at beginning of period	1,379,386	310,459
Cash and cash equivalents and restricted cash at end of period	1,992,470	221,520
Non-cash investing and financing activities:
Issuance of common stock in satisfaction of certain accrued compensation liabilities	31,173	27,619
Debt issuance costs not paid for	6,649
Right-of-use assets obtained in exchange for operating lease liabilities	5,241	3,750
Capital expenditures not paid for during the period		$ 17,944
Inmarsat [Member]
Non-cash investing and financing activities:
Issuance of common stock in connection with acquisition	$ 2,123,455