Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Summary of Significant Accounting Policies

Schedule of cash and cash equivalents and restricted cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets to the amounts shown in the consolidated statements of cash flows as of March 31, 2018 and 2017 (in thousands):

	March 31,		March 31,
	2018		2017
Cash and cash equivalents	$	175,187	$	58,595
Restricted cash		1,329		1,546
Total cash, cash equivalents and restricted cash	$	176,516	$	60,141

Changes in warranty reserve

During the three months ended March 31, 2018 and 2017, changes in the warranty reserve consisted of the following (in thousands):

	Three Months Ended
	March 31,
	2018		2017
Accrued warranty reserve, beginning of period	$	4,916	$	4,033
Reserve provided		998		416
Payments		(1,291)		(959)
Accrued warranty reserve, end of period	$	4,623	$	3,490

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 months ended March 31, 2018 and 2017 (in thousands, except per share amounts):

	Three Months Ended
	March 31,
	2018		2017
Numerator:
Basic net income (loss)	$	(2,343)	$	2,439
Effect of dilutive securities		—		—
Diluted net income (loss)	$	(2,343)	$	2,439
Denominator:
Basic weighted average shares outstanding		22,570		22,471
Effect of dilutive securities		—		247
Diluted weighted average shares outstanding		22,570		22,718
Basic earnings (loss) per share	$	(0.10)	$	0.11
Diluted earnings (loss) per share	$	(0.10)	$	0.11