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Income Taxes - Schedule of temporary differences comprising the net deferred income tax liability (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Oct. 01, 2017 | Oct. 02, 2016
Deferred Tax Assets: |  |
State taxes | $ 598 | $ 697
Reserves and contingent liabilities | 2,941 | 2,539
Allowance for doubtful accounts | 4,273 | 3,817
Accrued liabilities | 22,466 | 24,663
Stock-based compensation | 10,069 | 10,684
Intangibles | 0 | 0
Loss carry-forwards | 28,261 | 23,514
Valuation allowance | (25,326) | (25,447)
Total deferred tax assets | 43,282 | 40,467
Deferred Tax Liabilities: |  |
Unbilled revenue | (46,408) | (54,638)
Prepaid expense | (6,253) | (2,921)
Intangibles | (24,328) | (33,268)
Property and equipment | (8,311) | (9,358)
Total deferred tax liability | (85,300) | (100,185)
Net deferred tax liabilities | (42,018) | $ (59,718)
Undistributed earnings of foreign subsidiaries | 68,400 |
Incremental federal tax due to repatriation of foreign earnings | 6,200 |
Unrecognized tax benefits that would affect the effective tax rate, if recognized | $ 9,300 |
Period during which unrecognized tax benefits would affect the effective tax rate | 12 months |
State | Expiration dates through 2036 |  |
Deferred Tax Liabilities: |  |
Net operating loss carry forwards which expire at various dates | $ 43,700 |
Foreign |  |
Deferred Tax Liabilities: |  |
Net operating loss carry forwards which have no expiration date | 64,000 |
Foreign | Expiration dates through 2036 |  |
Deferred Tax Liabilities: |  |
Net operating loss carry forwards which expire at various dates | 28,800 |
Net operating loss carryforwards | $ 92,900 |

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