CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
6 Months Ended
May 31, 2013
May 31, 2012
Cash flows from operating activities:    
Net income $ 64,183 $ 73,984
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation expense 8,269 8,202
Amortization of intangible assets 3,924 4,146
Accretion of convertible notes discount 2,314 2,584
Share-based compensation 4,698 4,225
(Benefit from) provision for doubtful accounts 4,255 1,067
Tax benefits from employee stock plans 1,554 2,736
Excess tax benefit from share-based compensation (1,765) (2,691)
(Gain) loss on investments (832) (1,705)
Changes in assets and liabilities, net of acquisition of businesses:    
Accounts receivable 194,418 174,031
Inventories (1,036) 96,836
Other assets (11,160) (9,140)
Accounts payable (147,284) (218,317)
Accrued liabilities (22,467) (22,965)
Deferred liabilities (7,599) 9,376
Net cash provided by (used in) operating activities 91,472 122,369
Cash flows from investing activities:    
Purchase of trading investments (261) (3,711)
Proceeds from sale of trading investments 3,149 4,886
Proceeds from redemption of held-to-maturity term deposits (129) 0
Acquisition of businesses, net of cash acquired (21,578) (269)
Purchase of property and equipment (8,127) (7,295)
Loans and deposits to third parties, net of payments received 762 635
Proceeds from sale of equity method investee net of investments made 4,153 3,480
Purchase of cost-method investment (1,705) 0
Changes in restricted cash (441) 12,438
Net cash provided by (used in) investing activities (24,177) 10,164
Cash flows from financing activities:    
Proceeds from securitization and revolving line of credit 256,038 1,139,537
Payment of securitization and revolving line of credit (266,825) (1,231,978)
Payment of long-term bank loans, capital leases and other borrowings (941) (1,472)
Excess tax benefit from share-based compensation 1,765 2,691
Increase (decrease) in book overdraft 0 (14,288)
contingent consideration liability payment 0 1,052
Payments for Repurchase of Common Stock (1,882) 0
Proceeds from issuance of common stock, net of taxes paid for settlement of equity awards 3,646 7,838
Payment for purchase of subsidiary shares from noncontrolling interest (11,400) (6,046)
Net cash provided by (used in) financing activities (19,599) (104,770)
Effect of exchange rate changes on cash and cash equivalents 4,991 1,880
Net increase (decrease) in cash and cash equivalents 52,687 29,643
Cash and cash equivalents at beginning of period 163,699 67,571
Cash and cash equivalents at end of period $ 216,386 $ 97,214