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CASH, CASH EQUIVALENTS AND INVESTMENTS
 9 Months Ended
Dec. 31, 2011
CASH, CASH EQUIVALENTS AND INVESTMENTS [Abstract]  
Cash, Cash Equivalents and Investments [Text Block]
CASH, CASH EQUIVALENTS AND INVESTMENTS

The following table represents the Company’s cash, cash equivalents and investments as of December 31, 2011 and March 31, 2011:

(in thousands)
 
December 31, 2011
 
March 31, 2011
 
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Fair
Value
Cash and cash equivalents:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash
 
$
161,069

 
$
—

 
$
—

 
$
161,069

 
$
136,804

 
$
—

 
$
—

 
$
136,804

Cash equivalents
 
16,992

 
2

 
—

 
16,994

 
140,569

 
1

 
(1
)
 
140,569

Total Cash and cash equivalents
 
$
178,061

 
$
2

 
$
—

 
$
178,063

 
$
277,373

 
$
1

 
$
(1
)
 
$
277,373

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term investments:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury Bills and Government Agency Securities
 
$
76,530

 
$
22

 
$
(10
)
 
$
76,542

 
$
105,849

 
$
17

 
$
(3
)
 
$
105,863

Commercial Paper
 
15,679

 
4

 
(3
)
 
15,680

 
30,071

 
5

 
(1
)
 
30,075

Corporate Bonds
 
24,372

 
22

 
(41
)
 
24,353

 
11,212

 
4

 
—

 
11,216

Certificates of Deposit ("CDs")
 
2,880

 
4

 
—

 
2,884

 
5,420

 
9

 
—

 
5,429

Total Short-term investments
 
$
119,461

 
$
52

 
$
(54
)
 
$
119,459

 
$
152,552

 
$
35

 
$
(4
)
 
$
152,583

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term investments:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury Bills and Government Agency Securities
 
$
39,176

 
$
26

 
$
(10
)
 
$
39,192

 
$
17,387

 
$
4

 
$
—

 
$
17,391

Corporate Bonds
 
20,924

 
13

 
(170
)
 
20,767

 
19,086

 
8

 
(35
)
 
19,059

CDs
 
2,003

 
—

 
(1
)
 
2,002

 
2,879

 
3

 
—

 
2,882

Total Long-term investments
 
$
62,103

 
$
39

 
$
(181
)
 
$
61,961

 
$
39,352

 
$
15

 
$
(35
)
 
$
39,332

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total cash, cash equivalents and investments
 
$
359,625

 
$
93

 
$
(235
)
 
$
359,483

 
$
469,277

 
$
51

 
$
(40
)
 
$
469,288



As of December 31, 2011 and March 31, 2011, all of the Company’s investments are classified as available-for-sale securities.  

The following table summarizes the amortized cost and fair value of the Company’s cash equivalents, short-term investments and long-term investments, classified by stated maturity as of December 31, 2011 and March 31, 2011:
(in thousands)
 
December 31, 2011
 
March 31, 2011
 
 
Amortized
Cost
 
Fair Value
 
Amortized
Cost
 
Fair Value
Due in 1 year or less
 
$
136,453

 
$
136,453

 
$
293,121

 
$
293,152

Due in 1 to 3 years
 
62,103

 
61,961

 
39,352

 
39,332

Total
 
$
198,556

 
$
198,414

 
$
332,473

 
$
332,484



The Company did not incur any material realized or unrealized net gains or losses in the three or nine months ended December 31, 2011 or 2010.