Real Estate Transactions (Tables)	12 Months Ended
	Dec. 31, 2021
Auburn/Redyard [Member]
Property, Plant and Equipment [Line Items]
Schedule Of The Total Transaction Gain	June 30(Dollars in thousands) 2021Sales price $ 69,579Net book value (30,231)Gain on sale, gross of direct costs 39,348Direct sale costs incurred (622)Gain on sale, net of direct costs $ 38,726
Manukau [Member]
Property, Plant and Equipment [Line Items]
Schedule Of The Total Transaction Gain	March 31,(Dollars in thousands) 2021Sales price $ 56,058Net book value (13,618)Gain on sale, gross of direct costs 42,440Direct sale costs incurred (1,514)Gain on sale, net of direct costs $ 40,926
Coachella [Member]
Property, Plant and Equipment [Line Items]
Schedule Of The Total Transaction Gain	March 31,(Dollars in thousands) 2021Sales price $ 11,000Net book value (4,351)Gain on sale, gross of direct costs 6,649Direct sale costs incurred (301)Gain on sale, net of direct costs $ 6,348
Royal George Theatre [Member]
Property, Plant and Equipment [Line Items]
Schedule Of The Total Transaction Gain	June 30(Dollars in thousands) 2021Sales price $ 7,075Net book value (1,824)Gain on sale, gross of direct costs 5,251Direct sale costs incurred (295)Gain on sale, net of direct costs $ 4,956
Invercargill [Member]
Property, Plant and Equipment [Line Items]
Schedule Of The Total Transaction Gain	September 30(Dollars in thousands) 2021Sales price $ 3,803Net book value (1,425)Gain on sale, gross of direct costs 2,378Direct sale costs incurred (6)Gain on sale, net of direct costs $ 2,372