CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net earnings (loss)	$ 57,119	$ 71,516	$ (28,442)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation, amortization and impairment of long-lived assets	116,208	134,662	146,355
Loss (gain) on disposal or impairment of assets	25	(48,197)	3,883
Impairment of goodwill and other intangibles		17,803	79,674
Deferred income taxes	(3,578)	2,228	18,579
Non-cash share-based compensation expense	12,002	8,970	13,097
Changes in operating assets and liabilities:
Accounts receivable, net	6,678	(947)	(13,024)
Other assets	(9,185)	(4,907)	(2,394)
Deferred costs	(1,564)	(2,301)	(29,385)
Accounts payable and other liabilities	(8,888)	46,624	(22,899)
Deferred revenue	(18,685)	4,000	775
Net cash provided by operating activities	150,132	229,451	166,219
Cash flows from investing activities:
Payments from (for) the disposition of operations		72,425	(1,079)
Capitalized software development costs	(19,879)	(5,262)	(4,555)
Capital expenditures	(38,491)	(51,591)	(59,021)
Payments received for investments		370	175
Data acquisition costs	(8,570)	(12,312)	(13,366)
Net cash paid in acquisitions		(255)	(12,927)
Net cash provided by (used in) investing activities	(66,940)	3,375	(90,773)
Cash flows from financing activities:
Payments of debt	(26,871)	(154,876)	(102,101)
Acquisition liability payment	(288)	(326)
Acquisition of treasury stock	(74,378)	(65,535)
Sale of common stock	11,957	12,205	9,320
Noncontrolling interests equity contributions			480
Income tax impact of stock options, warrants and restricted stock	357	(1,310)	(316)
Net cash used in financing activities	(89,223)	(209,842)	(92,617)
Effect of exchange rate changes on cash	(643)	(309)	90
Net change in cash and cash equivalents	(6,674)	22,675	(17,081)
Cash and cash equivalents at beginning of period	229,648	206,973	224,054
Cash and cash equivalents at end of period	222,974	229,648	206,973
Cash paid during the period for:
Interest	12,709	19,059	23,886
Income taxes	57,464	20,765	25,339
Payments on capital leases and installment payment arrangements	16,514	18,331	22,357
Payments on software and data license liabilities	1,769	2,916	5,316
Prepayment of debt		125,000	66,000
Other debt payments	8,588	8,629	8,428
Noncash investing and financing activities:
Acquisition of property and equipment under capital leases and installment payment arrangements	$ 2,157	$ 11,242	$ 23,753