The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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Variable Interest Entities and Noncontrolling Interests - Variable interest entity (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2022	Mar. 31, 2021	Jul. 01, 2021
Variable Interest Entity [Line Items]
Net cash provided by (used for) operating activities		$ 551,563	$ 762,845
Net cash provided by (used for) investing activities		(312,719)	(493,189)
Net cash (used for) provided by financing activities		$ (233,573)	(186,602)
Greysbridge Holdings Ltd
Variable Interest Entity [Line Items]
Percentage ownership				40.00%
Kelso And Company \| Greysbridge Holdings Ltd
Variable Interest Entity [Line Items]
Percentage ownership				30.00%
Warburg Pincus LLC \| Greysbridge Holdings Ltd
Variable Interest Entity [Line Items]
Percentage ownership				30.00%
Variable Interest Entity, Primary Beneficiary \| Somers Holdings Ltd
Variable Interest Entity [Line Items]
Initial investment contribution amount	$ 100,000
Ownership percentage	11.00%
Net cash provided by (used for) operating activities			7,000
Net cash provided by (used for) investing activities			21,400
Net cash (used for) provided by financing activities			$ (1,000)