DEFERRED COSTS AND INTANGIBLES, NET - Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Amortization of deferred leasing costs, lease intangibles and other	$ 45,423	$ 13,916	$ 14,239
Amortization of above-market lease intangibles	$ 3,483	$ 999	$ 1,200

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of deferred leasing costs, lease intangibles and other over their estimated remaining economic lives.

No definition available.

Name:	krg_AmortizationOfDeferredLeasingCostsLeaseIntangiblesAndOther
Namespace Prefix:	krg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration