CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net earnings	$ 23,480	$ 4,108	$ 6,703
Earnings from discontinued operations, net of tax	0	0	(15,351)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	86,371	82,690	85,463
Loss on disposal of assets	3,348	3,040	232
Write-off of debt issuance costs	720	0	0
Impairment of goodwill and other assets	0	0	6,829
Deferred income taxes	(16,974)	(8,818)	(11,664)
Non-cash stock-based compensation expense	63,234	49,145	31,463
Changes in operating assets and liabilities:
Accounts receivable, net	(22,000)	(11,161)	(13,014)
Other assets	(4,740)	(172)	(13,632)
Accounts payable and other liabilities	(14,359)	4,302	25,529
Deferred revenue	(6,927)	(7,304)	11,084
Net cash provided by operating activities	112,153	115,830	113,642
Cash flows from investing activities:
Capitalized software development costs	(13,739)	(14,477)	(14,880)
Capital expenditures	(44,197)	(47,993)	(47,423)
Data acquisition costs	(907)	(881)	(1,553)
Proceeds from sales of assets	0	25,494	0
Equity investments	(1,000)	(1,000)	0
Cash paid in acquisitions, net of cash acquired	(4,478)	(137,383)	(5,386)
Net cash received in dispositions	4,000	16,988	0
Net cash used in investing activities	(60,321)	(159,252)	(69,242)
Cash flows from financing activities:
Proceeds from debt	230,000	70,000	0
Payments of debt	(227,320)	(32,243)	(87,231)
Debt issuance costs	(4,001)	0	0
Sale of common stock, net of stock acquired for withholding taxes	8,665	15,709	10,417
Excess tax benefits from stock-based compensation	0	2,852	3,551
Acquisition of treasury stock	(88,884)	(30,542)	(52,764)
Net cash provided by (used in) financing activities	(81,540)	25,776	(126,027)
Net cash used in continuing operations	(29,708)	(17,646)	(81,627)
Cash flows from discontinued operations:
Net cash provided by operating activities	0	0	6,323
Net cash provided by investing activities	0	0	124,506
Net cash used in financing activities	0	0	(206)
Net cash provided by discontinued operations	0	0	130,623
Net cash provided by (used in) continuing and discontinued operations	(29,708)	(17,646)	48,996
Effect of exchange rate changes on cash	1,644	(1,640)	(377)
Net change in cash and cash equivalents	(28,064)	(19,286)	48,619
Cash and cash equivalents at beginning of period	170,343	189,629	141,010
Cash and cash equivalents at end of period	142,279	170,343	189,629
Cash paid during the period for:
Interest	9,169	7,779	8,145
Income taxes, net of refunds	1,236	6,866	6,100
Noncash investing and financing activities:
Leasehold improvements paid directly by lessor	$ 978	$ 0	$ 0