6. Other Balance Sheet Accounts
Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consisted of the following (in thousands):
| As of January 31, | ||||||||
| 2013 | 2012 | |||||||
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Deferred professional services costs |
$ | 3,522 | $ | 10,399 | ||||
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Prepaid income taxes |
21,180 | 12,785 | ||||||
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Prepaid expenses and other current assets |
101,291 | 57,135 | ||||||
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| $ | 125,993 | $ | 80,319 | |||||
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Capitalized Software, net
Capitalized software consisted of the following (in thousands):
| As of January 31, | ||||||||
| 2013 | 2012 | |||||||
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Capitalized internal-use software development costs, net of accumulated amortization of $72,448 and $50,300, respectively |
$ | 59,647 | $ | 41,442 | ||||
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Acquired developed technology, net of accumulated amortization of $179,906 and $99,886, respectively |
147,676 | 146,970 | ||||||
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| $ | 207,323 | $ | 188,412 | |||||
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Capitalized internal-use software amortization expense totaled $22.1 million, $15.8 million and $13.1 million for fiscal 2013, 2012 and 2011, respectively. Acquired developed technology amortization expense totaled $80.0 million, $62.1 million, and $16.9 million for fiscal 2013, 2012 and 2011, respectively.
During fiscal 2013, 2012 and 2011, the Company capitalized $3.4 million, $2.4 million and $2.6 million respectively, of stock-based expenses related to capitalized internal-use software development and deferred professional services.
Other Assets, net
Other assets consisted of the following (in thousands):
| As of January 31, | ||||||||
| 2013 | 2012 | |||||||
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Deferred professional services costs, noncurrent portion |
$ | 1,077 | $ | 3,935 | ||||
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Long-term deposits |
13,422 | 13,941 | ||||||
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Purchased intangible assets, net of accumulated amortization of $28,790 and $17,868, respectively |
49,354 | 46,110 | ||||||
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Acquired intellectual property, net of accumulated amortization of $7,074 and $3,139, respectively |
13,872 | 15,020 | ||||||
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Strategic investments |
51,685 | 53,949 | ||||||
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Other |
20,338 | 22,194 | ||||||
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| $ | 149,748 | $ | 155,149 | |||||
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Purchased intangible assets amortization expense for fiscal 2013, 2012 and 2011 was $10.9 million, $8.0 million and $4.2 million, respectively. Acquired intellectual property amortization expense for fiscal 2013, 2012 and 2011 was $3.9 million, $2.4 million and $0.6 million, respectively.
Accounts Payable, Accrued Expenses and Other Liabilities
Accounts payable, accrued expenses and other liabilities consisted of the following (in thousands):
| As of January 31, | ||||||||
| 2013 | 2012 | |||||||
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Accounts payable |
$ | 14,535 | $ | 33,258 | ||||
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Accrued compensation |
311,595 | 228,466 | ||||||
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Accrued other liabilities |
138,165 | 121,957 | ||||||
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Accrued income and other taxes payable |
120,341 | 100,471 | ||||||
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Accrued professional costs |
10,064 | 21,993 | ||||||
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Accrued rent |
3,006 | 6,115 | ||||||
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| $ | 597,706 | $ | 512,260 | |||||
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