Monetary value of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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Term of the unrecognized unconditional purchase obligation, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Commitments and Contingencies - Lease and Other Commitments (Details) - USD ($)	1 Months Ended	3 Months Ended
	Feb. 28, 2021	Mar. 31, 2022	Mar. 31, 2021
Long-term Purchase Commitment [Line Items]
Term of non-cancellable agreement		3 years
Purchase commitment		$ 30,200,000
Payments to acquire investments		$ 246,874,000	$ 1,640,499,000
Syniverse
Long-term Purchase Commitment [Line Items]
Payments to acquire investments	$ 750,000,000
Minimum \| Syniverse
Long-term Purchase Commitment [Line Items]
Common stock, value, subscriptions	500,000,000
Maximum \| Syniverse
Long-term Purchase Commitment [Line Items]
Common stock, value, subscriptions	$ 750,000,000