CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	3 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net earnings	$ 10,015	$ 9,436
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation, amortization and impairment of long-lived assets	35,295	35,986
Deferred income taxes	37	1,435
Non-cash share-based compensation expense	2,355	2,972
Changes in operating assets and liabilities:
Accounts receivable, net	(3,622)	(16,836)
Other assets	(8,517)	(1,467)
Deferred costs	(386)	(9,981)
Accounts payable and other liabilities	(3,674)	(7,121)
Deferred revenue	1,251	2,564
Net cash provided by operating activities	32,754	16,988
Cash flows from investing activities:
Capitalized software development costs	(529)	(1,226)
Capital expenditures	(12,577)	(8,752)
Payments received (paid) for investments		175
Data acquisition costs	(2,776)	(4,326)
Net cash paid in acquisitions	(255)	(1,978)
Net cash used in investing activities	(16,137)	(16,107)
Cash flows from financing activities:
Payments of debt	(32,312)	(8,964)
Contingent consideration paid for prior acquisitions	(326)
Sale of common stock	39	3,801
Net cash used in financing activities	(32,599)	(5,163)
Effect of exchange rate changes on cash	53	(1,365)
Net change in cash and cash equivalents	(15,929)	(5,647)
Cash and cash equivalents at beginning of period	207,023	224,104
Cash and cash equivalents at end of period	191,094	218,457
Cash paid (received) during the period for:
Interest	5,589	5,780
Income taxes	1,098	3,358
Payments on capital leases and installment payment arrangements	4,794	5,968
Payments on software and data license liabilities	367	893
Prepayments of debt	25,000
Other debt payments, excluding line of credit	2,151	2,103
Non-cash investing and financing activities:
Acquisition of property and equipment under capital leases and installment payment arrangements	$ 3,747	$ 10,268