Loans Receivable - Summary of Real Estate Loan Activity (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Advances on loans receivable:
Net cash advances on loans receivable	$ 918,407	$ 19,538
Receipts on loans receivable:
Net cash receipts on loans receivable	248,841	12,796
Seniors Housing Operating
Advances on loans receivable:
Investments in new loans	902,189	2,477
Draws on existing loans	16,218	17,061
Net cash advances on loans receivable	918,407	19,538
Receipts on loans receivable:
Loan payoffs	179,827	0
Principal payments on loans	69,014	12,796
Net cash receipts on loans receivable	248,841	12,796
Net cash advances (receipts) on loans receivable	$ 669,566	$ 6,742

The net amount paid or received by the reporting entity associated with purchase (sale or collection) of loans receivable arising from the financing of goods and services.

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-Publisher FASB
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The cash outflow for the purchase of loan receivable arising from the financing of goods and services.

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The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services.

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Advances on real estate loans receivable.

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Draws on existing loans.

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Investments in new loans.

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Loan payoffs.

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Principal payments on loans.

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