Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Cash flows from operating activities:
Net income	$ 15,379	$ 3,634
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,367	17,503
Stock-based compensation, excluding cash-settled awards	18,009	14,814
Losses on early retirements of debt	0	237
Other, net	179	45
Changes in operating assets and liabilities, net of effects of business combinations and divestitures:
Accounts receivable	33,802	31,124
Contract assets	(4,776)	1,923
Inventories	(2,372)	(937)
Prepaid expenses and other assets	1,404	21,278
Accounts payable and accrued expenses	(2,410)	(6,821)
Contract liabilities	(12,418)	(19,245)
Deferred income taxes	775	90
Other, net	1,778	(3,638)
Net cash provided by operating activities	60,717	60,007
Cash flows from investing activities:
Cash paid for asset acquisitions and business combinations, including adjustments, net of cash acquired	(9,206)	0
Divestitures, net of cash divested	1,300	0
Purchases of property and equipment	(3,591)	(4,923)
Maturities and sales of investments	228	232
Purchases of investments	(330)	(3,180)
Cash paid for capitalized software development costs	(2,538)	(1,868)
Change in restricted bank time deposits, and other investing activities, net	2	(1,019)
Net cash used in investing activities	(14,135)	(10,758)
Cash flows from financing activities:
Proceeds from borrowings	0	100,000
Repayments of borrowings and other financing obligations	(553)	(100,530)
Purchases of treasury stock and common stock for retirement	(37,095)	(60,294)
Preferred stock dividend payments	(10,400)	(10,400)
Distributions paid to noncontrolling interest	(245)	(245)
Payments of contingent consideration for business combinations (financing portion)	(2,658)	(18)
Cash received for contingent consideration for business divestitures (financing portion) and other financing activities	214	1
Net cash used in financing activities	(50,737)	(71,486)
Foreign currency effects on cash, cash equivalents, restricted cash, and restricted cash equivalents	(848)	859
Net decrease in cash, cash equivalents, restricted cash, and restricted cash equivalents	(5,003)	(21,378)
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of period	242,669	282,161
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of period	$ 237,666	$ 260,783