Annual report pursuant to Section 13 and 15(d)

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Changes in Warranty Reserves (Details)

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BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Changes in Warranty Reserves (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Warranty Reserves    
Balance, beginning of year $ 22,660 $ 21,615
Additions to reserve from new home deliveries 17,161 16,776
Warranty claims (14,854) (14,719)
Adjustments to pre-existing reserves (1,639) (1,012)
Balance, end of year $ 23,328 $ 22,660