Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 02, 2016

Schedule of Cash, Cash Equivalents and Investments

At January 2, 2016 and January 3, 2015, cash, cash equivalents and investments consisted of the following:



Year-End 2015 (In thousands)	Cash and cash equivalents		Short-term investments		Long-term investments
Held-to-maturity securities
Certificates of deposit	$	—	$	252	$	—
Available-for-sale securities
Debt securities	—		4,000		8,067
Cash and money market accounts	28,548		—		—
Total	$	28,548	$	4,252	$	8,067

The amortized cost basis of the debt securities as of January 2, 2016 was $12.1 million. Immaterial unrealized gains are recorded in accumulated other comprehensive income as of January 2, 2016 for these debt securities.



Year-End 2014 (In thousands)	Cash and cash equivalents		Short-term investments		Long-term investments
Held-to-maturity securities
Certificates of deposit	$	—	$	252	$	—
Available-for-sale securities
Debt securities	—		2,800		9,240
Cash and money market accounts	34,144		—		—
Total	$	34,144	$	3,052	$	9,240

The amortized cost basis of the debt securities as of January 3, 2015 was $12.0 million. Unrealized gains of $0.1 million and unrealized losses of $0.0 million are recorded in accumulated other comprehensive income as of January 3, 2015 for these debt securities.

Allowance for Doubtful Accounts



Allowance for doubtful accounts	Balance at beginning of period	Charged to costs and expenses	Amounts written off, net of recoveries and other adjustments	Balance at end of period
Year ended January 2, 2016	5,096	1,394	2,203	4,287
Year ended January 3, 2015	6,208	343	1,455	5,096
Year ended December 28, 2013	5,151	2,590	1,533	6,208

Schedule of Product Warranties

Activity associated with warranty obligations was as follows:



(In thousands)	2015			2014			2013
Balance at the beginning of the period	$	16,719		$	13,840		$	13,055
Accrual assumed from acquisition	—			1,100			—
Accruals for warranties issued during the period	19,995			18,951			21,878
Accrual(Recovery) related to pre-existing warranties	(334		)	172			106
Settlements made during the period	(20,153		)	(17,344		)	(21,199		)
Balance at the end of the period	$	16,227		$	16,719		$	13,840

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles the numerators and denominators used in the calculation of basic and diluted earnings per share (EPS):



(In thousands, except per share data)	2015		2014		2013
Numerators:
Numerators for both basic and diluted EPS net income attributable to parent company	$	105,436	$	61,471	$	63,683
Denominators:
Denominator for basic EPS weighted- average common shares outstanding	44,285		44,760		45,251
Potentially dilutive shares from stock option plans	1,156		819		706
Denominator for diluted EPS	45,441		45,579		45,956
Earnings per share – basic	$	2.38	$	1.37	$	1.41
Earnings per share – diluted	$	2.32	$	1.35	$	1.39