Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2017

Summary of Significant Accounting Policies

Changes in warranty reserve

During the three and nine months ended September 30, 2017 and 2016, changes in the warranty reserve consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Accrued warranty reserve, beginning of period	$	3,864	$	3,581	$	4,033	$	3,333
Reserve provided		687		952		2,496		2,440
Payments		(997)		(1,004)		(2,975)		(2,244)
Accrued warranty reserve, end of period	$	3,554	$	3,529	$	3,554	$	3,529

Reconciliation of net income and weighted average shares outstanding for the calculation of basic and diluted earnings per share

The following table represents a reconciliation of the net income (loss) and weighted average shares outstanding for the calculation of basic and diluted earnings (loss) per share for the three and nine months ended September 30, 2017 and 2016 (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Numerator:
Basic net income (loss)	$	(1,477)	$	11,897	$	1,609	$	130,049
Effect of dilutive securities		—		1,201		—		3,600
Diluted net income (loss)	$	(1,477)	$	13,098	$	1,609	$	133,649
Denominator:
Basic weighted average shares outstanding		22,504		22,416		22,487		22,403
Effect of dilutive securities		—		4,238		187		4,203
Diluted weighted average shares outstanding		22,504		26,654		22,674		26,606
Basic earnings (loss) per share	$	(0.07)	$	0.53	$	0.07	$	5.81
Diluted earnings (loss) per share	$	(0.07)	$	0.49	$	0.07	$	5.02