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Investments (Tables)
 9 Months Ended
Oct. 27, 2012
Investments, Debt and Equity Securities [Abstract]  
Components of Investments
Investments consisted of (in thousands):
 
October 27, 2012
 
January 28, 2012
Marketable securities:
 
 
 
Available-for-sale securities:
 
 
 
Auction rate securities—student loan backed (2)
$
4,755

 
$
84,650

Auction rate securities—municipal authority bonds (3)
15,148

 
14,858

Total available-for-sale securities
19,903

 
99,508

Rabbi Trust assets: (1)
 
 
 
Money market funds
23

 
23

Trust-owned life insurance policies (at cash surrender value)
87,648

 
85,126

Total Rabbi Trust assets
87,671

 
85,149

Total Investments
$
107,574

 
$
184,657

(1) 
Rabbi Trust assets are included in Other Assets on the Consolidated Balance Sheets and are restricted as to their use.
(2) As of October 27, 2012 and January 28, 2012, student loan backed auction rate securities were included in current assets.
(3) As of October 27, 2012 and January 28, 2012, municipal authority bond auction rate securities were included in current assets and non-current marketable securities, respectively.
Par and Carrying Values, and Related Cumulative Impairment Charges for the Marketable Securities
The par and carrying values, and related cumulative other-than-temporary impairment charges for the Company’s available-for-sale marketable securities as of October 27, 2012 were as follows:
(in thousands)
Par Value
 
Other-than-
Temporary
Impairment
 
Carrying
Value
Available-for-sale securities:
 
 
 
 
 
Auction rate securities—student loan backed
$
5,200

 
$
(445
)
 
$
4,755

Auction rate securities—municipal authority bonds
19,975

 
(4,827
)
 
15,148

Total available-for-sale securities
$
25,175

 
$
(5,272
)
 
$
19,903