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Details of Certain Balance Sheet Accounts (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Receivables, net [Abstract] |  |
Trade accounts | $ 85,321 | $ 80,705
Vendor incentives | 29,373 | 24,727
Other, net | 1,761 | 3,213
Total receivables | 116,455 | 108,645
Less allowance for doubtful accounts | (5,900) | (7,102)
Receivables, net | 110,555 | 101,543
Prepaid expenses and other current assets [Abstract] |  |
Prepaid expenses | 7,527 | 7,354
Other current assets | 3,771 | 324
Prepaid expenses and other current assets | 11,298 | 7,678
Property and equipment, net [Abstract] |  |
Land | 1,641 | 1,641
Building | 2,188 | 2,250
Leasehold improvements | 24,820 | 21,825
Autos and trucks | 7,099 | 1,929
Machinery and equipment | 24,433 | 22,161
Computer equipment | 31,616 | 27,835
Furniture and fixtures | 7,480 | 6,608
Fixed assets in progress | 2,000 | 1,962
Total property and equipment | 101,277 | 86,211
Less accumulated depreciation | (59,883) | (55,526)
Property and equipment, net | 41,394 | 30,685
Other assets, net [Abstract] |  |
Non-current deferred tax assets, net | 22,457 | 22,779
Other, net | 6,949 | 6,042
Other assets, net | 29,406 | 28,821
Accrued expenses and other current liabilities [Abstract] |  |
Salaries and bonuses | 36,141 | 20,705
Current deferred tax liabilities | 2,976 | 3,226
Other | 14,281 | 17,773
Accrued expenses and other current liabilities | $ 53,398 | $ 41,704

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