Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2012

Accounting Policies [Abstract]

Schedule of Cash, Cash Equivalents and Investments

At December 29, 2012, December 31, 2011 and January 1, 2011, cash, cash equivalents and investments consisted of the following:

Year-End 2012 (In thousands)	Cash and cash equivalents		Short-term investments		Long-term investments
Held-to-maturity securities
Certificates of deposit	$	—	$	250	$	—
Available-for-sale securities
Debt securities	—		7,000		13,356
Cash and money market accounts	41,782		—		—
Total	$	41,782	$	7,250	$	13,356

Year-End 2011 (In thousands)	Cash and cash equivalents		Short-term investments		Long-term investments
Held-to-maturity securities
Certificates of deposit	$	—	$	257	$	—
Available-for-sale securities
Debt securities	—		8,900		10,714
Cash and money market accounts	72,812		—		—
Total	$	72,812	$	9,157	$	10,714

Year-End 2010 (In thousands)	Cash and cash equivalents		Short-term investments		Long-term investments
Held-to-maturity securities
Certificates of deposit	$	—	$	255	$	—
Available-for-sale securities
Debt securities	—		9,607		—
Investment in target fund	—		705		—
Cash and money market accounts	99,096		—		—
Total	$	99,096	$	10,567	$	—

Schedule of Product Warranties

Activity associated with warranty obligations was as follows:

(In thousands)	2012			2011			2010
Balance at the beginning of the period	$	12,910		$	12,930		$	12,684
Accrual assumed from acquisition	301			222			—
Accruals for warranties issued during the period	18,370			15,581			15,747
Accrual related to pre-existing warranties	432			(100		)	1,223
Settlements made during the period	(18,958		)	(15,723		)	(16,724		)
Balance at the end of the period	$	13,055		$	12,910		$	12,930

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)	2012		2011		2010
Numerators:
Numerators for both basic and diluted EPS net income (loss) attributable to parent company	$	48,967	$	45,986	$	26,941
Denominators:
Denominator for basic EPS weighted- average common shares outstanding	45,211		44,803		44,994
Potentially dilutive shares from stock option plans	609		891		815
Denominator for diluted EPS	45,820		45,694		45,809
Earnings per share – basic	$	1.08	$	1.03	$	0.60
Earnings per share – diluted	$	1.07	$	1.01	$	0.59