CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Cash flows from operating activities:
Net earnings (loss)	$ 71,516	$ (28,442)	$ 44,159
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Impairment of goodwill and other intangibles	17,803	79,674
Depreciation, amortization and impairment of long-lived assets	134,662	146,355	167,564
Loss (gain) on disposal of assets, net	(48,197)	3,883	417
Deferred income taxes	2,228	18,579	32,810
Non-cash share-based compensation expense	8,970	13,097	10,790
Changes in operating assets and liabilities:
Accounts receivable, net	(947)	(13,024)	10,295
Other assets	(4,907)	(2,394)	2,171
Deferred costs	(2,301)	(29,385)	(20,289)
Accounts payable and other liabilities	46,624	(22,899)	(8,215)
Deferred revenue	4,000	775	(420)
Net cash provided by operating activities	229,451	166,219	239,282
Cash flows from investing activities:
Payments from (for) the disposition of operations	72,425	(1,079)
Proceeds received from the disposition of assets			1,058
Capitalized software development costs	(5,262)	(4,555)	(8,257)
Capital expenditures	(51,591)	(59,021)	(57,908)
Payments received (paid) for investments	370	175	(2,000)
Data acquisition costs	(12,312)	(13,366)	(18,808)
Net cash paid in acquisitions	(255)	(12,927)	(3,428)
Net cash provided by (used in) investing activities	3,375	(90,773)	(89,343)
Cash flows from financing activities:
Payments of debt	(154,876)	(102,101)	(104,521)
Fees for debt refinancing			(4,564)
Sale of common stock	12,205	9,320	5,925
Acquisition of treasury stock	(65,535)		(306)
Noncontrolling interests equity contributions		480	457
Contingent consideration paid for prior acquisitions	(326)
Income tax impact of stock options, warrants and restricted stock	(1,310)	(316)	(683)
Net cash used in financing activities	(209,842)	(92,617)	(103,692)
Effect of exchange rate changes on cash	(309)	90	691
Net change in cash and cash equivalents	22,675	(17,081)	46,938
Cash and cash equivalents at beginning of period	206,973	224,054	177,116
Cash and cash equivalents at end of period	229,648	206,973	224,054
Cash paid (received) during the period for:
Interest	19,059	23,886	21,337
Income taxes	20,765	25,339	(7,549)
Payments on capital leases and installment payment arrangements	18,331	22,357	29,697
Payments on software and data license liabilities	2,916	5,316	7,526
Prepayment of debt	125,000	66,000	57,500
Other debt payments, excluding line of credit	8,629	8,428	9,798
Noncash investing and financing activities:
Acquisition of property and equipment under capital leases and installment payment arrangements	$ 11,242	$ 23,753	$ 24,193