Consolidated Statement Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Cash flows from operating activities:
Cash received from customers	$ 21,579,962	$ 19,980,970
Cash paid to vendors and employees	(21,574,482)	(19,640,516)
Interest paid, net	(21,698)	(20,252)
Income taxes paid	(41,761)	(54,229)
Net cash (used in) provided by operating activities	(57,979)	265,973
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	0	8,044
Acquisition of trademarks	0	(1,519)
Proceeds from sale of property and equipment	7,121	0
Expenditures for property and equipment	(11,879)	(10,405)
Software and software development costs	(7,341)	(10,532)
Net cash used in investing activities	(12,099)	(14,412)
Cash flows from financing activities:
Proceeds from the reissuance of treasury stock	774	1,139
Acquisition earn-out payment	(5,060)	(6,183)
Net borrowings (repayments) on revolving credit loans	2,826	(120,602)
Principal payments on long-term debt	(419)	(398)
Excess tax benefit from stock-based compensation	667	907
Net cash used in financing activities	(1,212)	(125,137)
Effect of exchange rate changes on cash and cash equivalents	(33,073)	4,037
Net (decrease) increase in cash and cash equivalents	(104,363)	130,461
Cash and cash equivalents at beginning of year	570,101	340,564
Cash and cash equivalents at end of period	465,738	471,025
Reconciliation of net income to net cash provided by operating activities:
Net income	94,495	70,171
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	52,691	54,438
Gain on sale of building	(2,350)	0
Provision for losses on accounts receivable	8,668	9,748
Stock-based compensation expense	9,698	6,949
Accretion of debt discount on Senior Notes	198	198
Excess tax benefits from stock-based compensation	(667)	(907)
Changes in operating assets and liabilities:
Accounts receivable	18,399	85,503
Inventories	45,731	(13,240)
Prepaid expenses and other assets	31,691	103,881
Accounts payable	(300,804)	(29,968)
Accrued expenses and other liabilities	(15,729)	(20,800)
Total adjustments	(152,474)	195,802
Net cash (used in) provided by operating activities	$ (57,979)	$ 265,973