Marketable Debt Securities (Notes)

12 Months Ended

Dec. 29, 2012

Marketable Debt Securities

Investments of marketable debt securities were comprised of the following (in thousands):



	December 29, 2012
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value⁽¹⁾
U.S. Treasury securities	$	32,518	$	24	$	—		$	32,542
Corporate bonds	31,929		2		(23		)	31,908
U.S. Agency bonds	17,632		11		(1		)	17,642
Municipal bonds	7,794		20		—			7,814
	$	89,873	$	57	$	(24	)	$	89,906



	December 31, 2011
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value⁽¹⁾
U.S. Treasury securities	$	30,021	$	41	$	—	$	30,062

Maturities of marketable debt securities were as follows (in thousands):



	December 29, 2012				December 31, 2011
	Amortized Cost		Fair Value⁽¹⁾		Amortized Cost		Fair Value⁽¹⁾
Marketable debt securities – current (due in less than one year)	$	51,238	$	51,264	$	20,004	$	20,020
Marketable debt securities – non-current (due in one to two years)	38,635		38,642		10,017		10,042
	$	89,873	$	89,906	$	30,021	$	30,062

⁽¹⁾ See Note 2 for discussion of fair value measurements.

During 2012, $26.0 million of marketable debt securities matured and were redeemed at face value. During 2012, there were no other-than-temporary declines in market value.