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Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2020	Jun. 30, 2021
Commitments and Contingencies
Co-investment commitments in partnership		$ 128.5
Equity Method Investee
Commitments and Contingencies
Total contingent payments		104.4
Contingent payments in year one		$ 77.5
Noncontrolling interest, sell of ownership percentage	5.00%
Undisclosed Affiliate | Equity Method Investee
Commitments and Contingencies
Ownership percentage by minority owner		14.00%
Payments for Achievement of Financial Targets
Commitments and Contingencies
Total contingent payments		$ 188.0
Contingent payments in year one		40.5
Contingent payments after year one		147.5
Expected payments		13.0
Payment contingent on not meeting financial targets (up to)		12.5
Payment contingent on exercise of option to reduce ownership percentage		$ 25.0

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- Definition

-- None. No documentation exists for this element. --

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No definition available.

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- Definition

The amount that the entity agreed to co-invest in certain investment partnerships where the entity serves as the general partner.

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No definition available.

+ Details

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- Definition

Noncontrolling Interest, Notification of Possible Sale of Noncontrolling Interest, Percentage

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- Definition

Other Commitment, Contingent Consideration, Asset

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- Definition

Other Commitment, Contingent Consideration, Option To Reduce Ownership Interest, Asset

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No definition available.

+ Details

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- Definition

Other Commitment Expected Payments

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No definition available.

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- Definition

Other Commitment, To Be Paid, After Year One

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No definition available.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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No definition available.

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- Definition

Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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