Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Warranty activity during the three months ended March 31, 2019 and 2018 consisted of the following (in thousands):



	Three Months Ended March 31,
	2019			2018
Warranty accrual, beginning of period	$	2,980		$	2,083
Warranties issued	653			404
Changes in liability for existing warranties	(144		)	(4		)
Settlements	(862		)	(247		)
Warranty accrual, end of period	$	2,627		$	2,236

Schedule of Annual Minimum Operating Lease Payments

The future annual undiscounted cash flows in relation to the operating leases and a reconciliation of such undiscounted cash flows to the operating lease liabilities recognized in the condensed consolidated balance sheet as of March 31, 2019 are presented below (in thousands):



Remainder of 2019	$	896
2020	1,235
2021	1,011
2022	734
2023	558
Total future lease payments	$	4,434
Less: Interest	438
Present value of lease liabilities	$	3,996

Schedule of Expected Land and Lot Purchase Payments Under Option Agreements

If each option contract in place as of March 31, 2019 was exercised, expected purchase payments would be as follows (in thousands):



	Total
Remainder of 2019	$	107,083
2020	72,595
2021	24,779
2022	1,970
Total	$	206,427