CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net earnings	$ 13,095	$ 13,199
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization	25,185	30,995
Loss on disposal or impairment of assets		24
Deferred income taxes	(588)	(1,403)
Non-cash share-based compensation expense	3,181	2,653
Changes in operating assets and liabilities:
Accounts receivable, net	1,140	(4,609)
Other assets	878	(1,397)
Deferred costs		(647)
Accounts payable and other liabilities	(27,309)	(33,464)
Deferred revenue	1,267	(7,218)
Net cash provided by (used in) operating activities	16,849	(1,867)
Cash flows from investing activities:
Capitalized software development costs	(5,954)	(3,673)
Capital expenditures	(8,920)	(3,538)
Data acquisition costs	(1,961)	(2,302)
Net cash used in investing activities	(16,835)	(9,513)
Cash flows from financing activities:
Payments of debt	(4,890)	(6,856)
Acquisition liability payment		(287)
Acquisition of treasury stock	(16,139)	(33,097)
Sale of common stock	5,755	1,761
Net cash used in financing activities	(15,274)	(38,479)
Effect of exchange rate changes on cash	(84)	(507)
Net change in cash and cash equivalents	(15,344)	(50,366)
Cash and cash equivalents at beginning of period	222,974	229,648
Cash and cash equivalents at end of period	207,630	179,282
Cash paid during the period for:
Interest	3,011	3,223
Income taxes	1,084	16,193
Payments on capital leases and installment payment arrangements	4,400	4,562
Other debt payments	490	2,294
Non-cash investing and financing activities:
Acquisition of property and equipment under capital leases and installment payment arrangements		$ 2,157