Summary of Significant Accounting Policies Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Development reimbursement receivable from local municipalities	$ 29,062	$ 22,237
Mortgage Servicing Rights	8,361	9,237
Prepaid Expense	15,591	15,918
Prepaid Land Acquisition Costs	8,186	10,092
Other	41,826	37,691
Other Assets	$ 103,026	$ 95,175