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ACCRUED EXPENSES AND OTHER LIABILITIES - Summary of Changes in Reserves (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Changes in Warranty Reserves        
Reserve - beginning of period $ 116,406 $ 121,964 $ 118,116 $ 120,048
Net additions to reserves due to WLH acquisition 0 0 0 9,130
Other additions to reserves 18,394 17,005 30,784 26,743
Cost of claims incurred (19,067) (23,277) (34,931) (42,264)
Changes in estimates to pre-existing reserves 388 1,770 2,152 3,805
Reserve - end of period $ 116,121 $ 117,462 $ 116,121 $ 117,462