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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2013
Cash flows from operating activities:      
Net income $ 208,607 $ 180,150 $ 152,322
Adjustments to reconcile net income to net cash provided by (used in) operating activities:      
Depreciation expense 48,754 36,538 16,509
Amortization of intangible assets 54,756 55,161 7,953
Accretion of convertible notes discount 0 0 2,314
Share-based compensation 13,644 14,076 9,174
Provision for doubtful accounts 542 6,411 2,952
Tax benefits from employee stock plans 7,487 5,524 5,355
Excess tax benefit from share-based compensation (7,780) (5,513) (5,445)
Deferred income taxes (5,497) (25,863) 2,461
(Gains) losses on investments (50) 170 (1,058)
Unrealized foreign exchange losses 16,029 0 0
Changes in assets and liabilities, net of acquisition of businesses:      
Accounts receivable 292,863 (527,945) (187,489)
Receivable from related parties 217 (188) 139
Inventories 40,121 (330,153) (155,221)
Other assets (14,527) (25,815) (5,573)
Accounts payable (26,019) 205,093 186,189
Payable to related parties 2,537 1,270 2,635
Accrued liabilities 3,002 167,666 10,939
Other liabilities 8,923 8,646 (8,449)
Net cash provided by (used in) operating activities 643,609 (234,772) 35,707
Cash flows from investing activities:      
Purchases of trading investments (93) (761) (539)
Proceeds from sale of trading investments 2,105 3,610 3,650
Purchases of term deposits (9,973) (13,308) (17,173)
Proceeds from maturity of term deposits 9,593 17,517 16,909
Acquisition of businesses, net of cash acquired 37,299 (384,867) (27,123)
Purchases of property and equipment (100,106) (57,377) (28,965)
Loans and deposits to third parties, net of payments received (539) 2,836 1,867
Purchases of cost investment 0 0 (1,705)
Proceeds from sale of equity-method investment 0 0 4,153
Proceeds from sale of cost investment 0 1,877 0
Changes in restricted cash (54,435) (11,178) 5,142
Net cash used in investing activities (116,149) (441,651) (43,784)
Cash flows from financing activities:      
Proceeds from securitization and revolving lines of credit 2,389,490 4,086,359 1,210,315
Payments of securitization and revolving lines of credit (3,028,674) (3,625,995) (1,055,592)
Proceeds from term loans, net of issuance cost 457,771 225,000 0
Payments of term loans, capital leases and other borrowings (63,832) (6,608) (1,479)
Payment of Convertible Senior Notes 0 0 (218,870)
Dividends paid (22,591) (4,927) 0
Excess tax benefit from share-based compensation 7,780 5,513 5,445
Increase (decrease) in book overdraft (82,236) 27,762 60,467
Payments of acquisition-related contingent consideration (170) (7,506) 0
Repurchases of common stock (8,736) 0 (1,882)
Proceeds from issuance of common stock 5,959 7,600 8,587
Repurchases of common stock for tax withholdings on equity awards (9,828) (5,273) (3,957)
Payments for purchase of shares of subsidiary from noncontrolling interest 0 0 (11,400)
Net cash provided by (used in) financing activities (355,067) 701,925 (8,366)
Effect of exchange rate changes on cash and cash equivalents (16,464) 3,019 4,366
Net increase (decrease) in cash and cash equivalents 155,929 28,521 (12,077)
Cash and cash equivalents at beginning of year 180,143 151,622 163,699
Cash and cash equivalents at end of year 336,072 180,143 151,622
Supplemental disclosures of cash flow information:      
Interest paid 16,319 15,443 8,386
Income taxes paid 140,962 87,163 88,314
Supplemental disclosure of non-cash investing activities:      
Fair value of common stock issued for acquisition of business 0 71,106 0
Accrued costs for property and equipment purchases $ 9,856 $ 3,563 $ 262