| Sep 30,
2010 | Sep 30,
2011 | Sep 30,
2012 | Sep 30,
2013 | Sep 30,
2014 | Sep 30,
2015 | Sep 30,
2016 | Sep 30,
2017 | Sep 30,
2018 | Sep 30,
2019 | Sep 30,
2020 | Sep 30,
2021 | Sep 30,
2022 | Sep 30,
2023 | Sep 30,
2024 |
|---|
| Net income | 64 | 72 | 92 | 90 | 95 | 87 | 109 | 128 | 142 | 192 | 236 | 392 | 374 | 429 | 513 |
|---|
| Depreciation and amortization | 31 | 24 | 22 | 33 | 33 | 34 | 32 | 36 | 30 | 32 | 30 | 26 | 20 | 15 | 14 |
|---|
| Share-based compensation | 17 | 16 | 21 | 26 | 36 | 45 | 56 | 61 | 75 | 83 | 94 | 112 | 115 | 124 | 149 |
|---|
| Deferred income taxes | 7 | 1 | -7 | 4 | -16 | -6 | -26 | -6 | 26 | 8 | -9 | -6 | 8 | -47 | -27 |
|---|
| Non-cash operating lease costs | - | - | - | - | - | - | - | - | - | - | - | 16 | 16 | 15 | 12 |
|---|
| Provision of doubtful accounts | -0 | - | - | 0 | 1 | - | 2 | 2 | 1 | 1 | 3 | 1 | 3 | 1 | 2 |
|---|
| Net (gain) loss on marketable securities | - | - | - | - | - | - | - | - | 1 | -1 | 2 | 5 | -9 | 3 | 10 |
|---|
| Net loss on sales and abandonment of property and equipment | -1 | -0 | -0 | -0 | 0 | -2 | -0 | -0 | -0 | -0 | -5 | -0 | -0 | -1 | -0 |
|---|
| Gain on product line asset sale | - | - | - | - | - | - | - | - | - | - | - | 100 | - | 2 | - |
|---|
| Accounts receivable | 12 | -9 | 26 | -1 | 14 | 5 | 18 | 1 | 42 | 36 | 60 | -24 | 32 | 70 | 34 |
|---|
| Prepaid expenses and other assets | -0 | -2 | -1 | 1 | 2 | 15 | -13 | 7 | 9 | 56 | 1 | 6 | -7 | 12 | 14 |
|---|
| Accounts payable | -0 | -2 | 7 | -1 | 3 | -4 | 1 | -2 | 1 | 2 | 1 | -2 | -3 | 2 | 3 |
|---|
| Accrued compensation and employee benefits | 5 | 3 | 11 | -12 | 17 | -2 | 17 | 6 | 7 | 22 | 12 | -13 | -4 | 5 | 3 |
|---|
| Other liabilities | -3 | 19 | 1 | 2 | 16 | 4 | -4 | -1 | 6 | 1 | 1 | -21 | -29 | -7 | 7 |
|---|
| Deferred revenue | -1 | -3 | 10 | -4 | 6 | -7 | 6 | 9 | -3 | 10 | 6 | 4 | 24 | 19 | 14 |
|---|
| Net cash provided by operating activities | 106 | 136 | 130 | - | - | - | - | - | - | 260 | 365 | 424 | 509 | 469 | 633 |
|---|
| Purchases of property and equipment | - | 14 | 25 | 24 | 13 | 25 | 22 | 20 | 31 | 24 | 22 | 8 | 6 | 4 | 9 |
|---|
| Capitalized internal-use software costs | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 17 |
|---|
| Proceeds from sales of marketable securities | - | - | - | - | - | - | - | - | 3 | 3 | 3 | 7 | 8 | 5 | 16 |
|---|
| Purchases of marketable securities | - | - | - | - | - | - | - | - | 6 | 6 | 6 | 9 | 10 | 11 | 18 |
|---|
| Payments (Proceeds) from Sale of Other Productive Assets | - | - | - | - | - | - | - | - | - | - | - | - | - | -6 | - |
|---|
| Net cash used in investing activities | 111 | -52 | -66 | - | - | - | - | - | - | -43 | -25 | 138 | -6 | -16 | -28 |
|---|
| Proceeds from Lines of Credit | - | - | - | 30 | 145 | 249 | 122 | 190 | 427 | 229 | 263 | 682 | 1,039 | 407 | 947 |
|---|
| Payments on revolving line of credit and term loans | 295 | - | 5 | 19 | 61 | 116 | 99 | 84 | 531 | 141 | 513 | 259 | 988 | 402 | 602 |
|---|
| Proceeds from issuance of senior notes | 245 | - | - | - | - | - | - | - | 400 | - | 350 | - | 550 | - | - |
|---|
| Payments on debt issuance costs | 1 | 1 | - | - | - | - | - | - | 8 | - | 7 | 1 | 9 | - | 1 |
|---|
| Payments on finance leases | - | - | - | - | - | - | - | - | - | 1 | 2 | 0 | - | - | 1 |
|---|
| Proceeds from issuance of treasury stock under employee stock plans | 1 | - | 71 | 30 | 7 | 18 | 18 | 14 | 11 | 23 | 42 | 21 | 16 | 22 | 25 |
|---|
| Taxes paid related to net share settlement of equity awards | - | - | - | - | - | 19 | 30 | 40 | 44 | 53 | 103 | 92 | 51 | 77 | 139 |
|---|
| Repurchases of common stock | 196 | 91 | 191 | 83 | 217 | 131 | 138 | 188 | 343 | 229 | 235 | 874 | 1,104 | 406 | 822 |
|---|
| Net cash used in financing activities | -248 | -94 | -128 | - | - | - | - | - | - | -200 | -289 | -524 | -547 | -455 | -593 |
|---|
| Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | - | - | - | - | - | - | - | - | - | - | - | - | -19 | 6 | 2 |
|---|
| Increase (decrease) in cash and cash equivalents | - | - | - | - | - | - | - | - | - | - | 51 | 38 | -62 | 4 | 14 |
|---|
| Proceeds from Income Tax Refunds | - | - | - | - | - | - | - | - | - | - | - | 0 | 1 | 1 | 1 |
|---|
| Income Taxes Paid, Net | 27 | 11 | 37 | 24 | 22 | 34 | 11 | 31 | 13 | 19 | 10 | 71 | 65 | 153 | 134 |
|---|
| Cash paid for interest | - | - | - | - | - | - | - | - | - | 40 | 38 | 38 | 57 | 97 | 106 |
|---|
| Unsettled repurchases of common stock | - | - | - | 2 | - | - | - | 6 | - | - | - | - | - | - | - |
|---|
| Capital Expenditures Incurred but Not yet Paid | - | - | - | 1 | 0 | 0 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
|---|
| Lease Obligation Incurred | - | - | - | - | - | - | - | - | - | 6 | 1 | - | - | - | 12 |
|---|