Consolidated Statement Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Cash flows from operating activities:
Cash received from customers	$ 23,717,345	$ 22,873,693
Cash paid to vendors and employees	(23,530,536)	(22,793,148)
Interest paid, net	(46,204)	(48,829)
Income taxes paid	(37,767)	(37,179)
Net cash provided by (used in) operating activities	102,838	(5,463)
Cash flows from investing activities:
Proceeds from sale of business, net of cash divested	0	8,985
Acquisition of businesses, net of cash acquired	0	(2,818)
Expenditures for property and equipment	(18,806)	(14,131)
Software and software development costs	(14,704)	(8,592)
Other	117	1,096
Net cash used in investing activities	(33,393)	(15,460)
Cash flows from financing activities:
Principal payments on long-term debt	(7,368)	(105,845)
Cash paid for debt issuance costs	(3,909)	0
Net borrowings (repayments) on revolving credit loans	19,786	(8,700)
Payments for employee tax withholdings on equity awards	(9,134)	(6,702)
Proceeds from the reissuance of treasury stock	1,002	920
Payments for Repurchase of Common Stock	(117,692)	0
Net cash used in financing activities	(117,315)	(120,327)
Effect of exchange rate changes on cash and cash equivalents	(12,988)	(21,519)
Net decrease in cash and cash equivalents	(60,858)	(162,769)
Cash and cash equivalents at beginning of year	799,123	955,628
Cash and cash equivalents at end of period	738,265	792,859
Reconciliation of net income to net cash provided by (used in) operating activities:
Net income	134,650	109,565
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Gain on disposal of subsidiary	0	(6,717)
Depreciation and amortization	74,759	80,399
Provision for losses on accounts receivable	14,432	6,270
Stock-based compensation expense	16,360	15,555
Accretion of debt discount and debt issuance costs	1,700	1,805
Deferred income taxes	(1,879)	(11,396)
Changes in operating assets and liabilities, net of acquisitions and disposition:
Accounts receivable	737,724	602,579
Inventories	139,997	(166,800)
Prepaid expenses and other assets	(10,535)	(40,180)
Accounts payable	(923,917)	(486,900)
Accrued expenses and other liabilities	(80,453)	(109,643)
Total adjustments	(31,812)	(115,028)
Net cash provided by (used in) operating activities	$ 102,838	$ (5,463)