Consolidated Statement Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Cash flows from operating activities:
Cash received from customers	$ 11,386,818	$ 11,913,347
Cash paid to vendors and employees	(11,356,142)	(11,800,318)
Interest paid, net	(30,207)	(35,101)
Income taxes paid	(8,198)	(14,739)
Net cash (used in) provided by operating activities	(7,729)	63,189
Cash flows from investing activities:
Expenditures for property and equipment	(5,596)	(7,745)
Software and software development costs	(13,944)	(7,534)
Proceeds from Hedge, Investing Activities	44,377	0
Other	(764)	(548)
Net cash provided by (used in) investing activities	24,073	(15,827)
Cash flows from financing activities:
Principal borrowings (payments) on long-term debt and capital securities	4,515	5,224
Cash paid for debt issuance costs	0	(1,028)
Net (repayments) borrowings on revolving credit loans	(472)	14,227
Payments for employee tax withholdings on equity awards	(10,774)	(8,602)
Proceeds from the reissuance of treasury stock	0	495
Repurchases of Common Stock	0	(35,681)
Other Financing Activities	(563)	0
Net cash used in financing activities	(7,294)	(35,813)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(21,475)	(13,172)
Net decrease in cash and cash equivalents	(12,425)	(1,623)
Cash and Cash Equivalents	841,366	799,123
Cash and Cash Equivalents	828,941	797,500
Reconciliation of net income to net cash (used in) provided by operating activities:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	48,065	55,400
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	41,991	37,257
Provision for losses on accounts receivable	10,832	1,765
Stock-based compensation expense	6,307	8,305
Accretion of debt discount and debt issuance costs	847	860
Changes in operating assets and liabilities:
Accounts receivable	690,145	751,836
Inventories	(60,180)	2,450
Prepaid expenses and other assets	(37,739)	1,763
Accounts payable	(752,022)	(706,381)
Accrued expenses and other liabilities	44,025	(90,066)
Total adjustments	(55,794)	7,789
Net cash (used in) provided by operating activities	$ (7,729)	$ 63,189