KW Unsecured Debt - Borrowings Under Credit Facilities (Details) - A&R Facility - Line of Credit - Revolving Credit Facility - USD ($)		6 Months Ended
	Mar. 25, 2020	Jun. 30, 2022
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 500,000,000
Maturity of extension	1 year
Maximum consolidated leverage ratio	65.00%
Fixed charge coverage ratio, measurement period (in months)	12 months
Covenant, percent of new equity offerings	50.00%
Maximum secured recourse leverage multiplier	1.5
Remaining borrowing capacity		$ 250,000,000
Average outstanding amount		$ 171,400,000
Minimum
Line of Credit Facility [Line Items]
Fixed charge coverage ratio	1.70
Tangible net worth	$ 1,700,000,000
Liquidity	$ 75,000,000
Maximum
Line of Credit Facility [Line Items]
Secured recourse leverage ratio	3.50%
Liquidity	$ 299,000,000
Adjusted secured leverage ratio	55.00%