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Fair Value Measurements and Financial Instruments - Summary of Change in Carrying Value of Level 3 Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Equity Securities | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the year	$ 0	$ 0
Purchases	35,120	0
Gains on equity securities	7,893	0
Balance at the end of the year	43,013	0
Series A Preferred Stock | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the year	214,400	131,280
Purchases	70,441	0
Gains on equity securities	12,900	52,725
Settlement of forwards	18,459	0
Transfer to Level 2	0	(184,005)
Transfer from level 2	0	198,526
Unrealized gains on available for sale debt securities	0	15,874
Redemption	(62,500)	0
Balance at the end of the year	253,700	214,400
Forwards | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the year	18,600	0
Settlement of forwards	(18,459)	0
Unrealized gains included in earnings	16,559	18,600
Balance at the end of the year	16,700	18,600
Available-for-sale Securities | Level 3 | Series A Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Unrealized gains on available for sale debt securities	11,600	52,700
Available-for-sale Securities | Level 3 | Series B Preferred Shares
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Unrealized gains on available for sale debt securities	1,300	$ 15,900
Available-for-sale Securities | Level 2
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Unrealized gains on available for sale debt securities	$ 14,500

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss), After Transfer To Level 3

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Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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