XML 37 R25.htm IDEA: XBRL DOCUMENT v3.20.2
Cash Equivalents and Investments (Tables)
 9 Months Ended
Oct. 31, 2020
Investments, Debt and Equity Securities [Abstract]  
Schedule of Cash Equivalents and Investments
The following is a summary of the Company’s cash equivalents, short-term investments, and long-term investments on the condensed consolidated balance sheets (in thousands):

October 31, 2020
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Fair Value
Cash equivalents:
U.S. government and agency securities$3,778,216 $9 $(13)$3,778,212 
Money market funds54,422 — — 54,422 
Total cash equivalents3,832,638 9 (13)3,832,634 
Investments:
U.S. government and agency securities982,899 397 (300)982,996 
Corporate notes and bonds111,751 402 (29)112,124 
Certificates of deposit45,285 28 (1)45,312 
Commercial paper20,837 15 (5)20,847 
Asset-backed securities246 1 — 247 
Total investments1,161,018 843 (335)1,161,526 
Total cash equivalents and investments$4,993,656 $852 $(348)$4,994,160 

January 31, 2020
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Fair Value
Cash equivalents:
U.S. government and agency securities$32,470 $2 $— $32,472 
Money market funds 21,379 — — 21,379 
Commercial paper446 — — 446 
Total cash equivalents54,295 2 — 54,297 
Investments:
U.S. government and agency securities259,738 216 (1)259,953 
Corporate notes and bonds30,642 57 — 30,699 
Commercial paper17,006 2 — 17,008 
Certificates of deposit12,592 12 — 12,604 
Asset-backed securities10,104 8 — 10,112 
Total investments330,082 295 (1)330,376 
Total cash equivalents and investments$384,377 $297 $(1)$384,673 
Schedule of Cash Equivalents and Investments
The following is a summary of the Company’s cash equivalents, short-term investments, and long-term investments on the condensed consolidated balance sheets (in thousands):

October 31, 2020
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Fair Value
Cash equivalents:
U.S. government and agency securities$3,778,216 $9 $(13)$3,778,212 
Money market funds54,422 — — 54,422 
Total cash equivalents3,832,638 9 (13)3,832,634 
Investments:
U.S. government and agency securities982,899 397 (300)982,996 
Corporate notes and bonds111,751 402 (29)112,124 
Certificates of deposit45,285 28 (1)45,312 
Commercial paper20,837 15 (5)20,847 
Asset-backed securities246 1 — 247 
Total investments1,161,018 843 (335)1,161,526 
Total cash equivalents and investments$4,993,656 $852 $(348)$4,994,160 

January 31, 2020
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Fair Value
Cash equivalents:
U.S. government and agency securities$32,470 $2 $— $32,472 
Money market funds 21,379 — — 21,379 
Commercial paper446 — — 446 
Total cash equivalents54,295 2 — 54,297 
Investments:
U.S. government and agency securities259,738 216 (1)259,953 
Corporate notes and bonds30,642 57 — 30,699 
Commercial paper17,006 2 — 17,008 
Certificates of deposit12,592 12 — 12,604 
Asset-backed securities10,104 8 — 10,112 
Total investments330,082 295 (1)330,376 
Total cash equivalents and investments$384,377 $297 $(1)$384,673 
Schedule of Available For Sale Securities Remaining Contractual Maturity The estimated fair values of available-for-sale debt securities, by remaining contractual maturity, are as follows (in thousands):
October 31, 2020
Estimated
Fair Value
Due within 1 year$4,592,335 
Due in 1 year to 3 years347,403 
Total$4,939,738