CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net earnings	$ 38,026	$ 44,020
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization	76,127	89,594
Loss (gain) on disposal or impairment of assets	(2,567)	25
Loss on early extinguishment of debt	664
Deferred income taxes	(3,666)	(6,428)
Non-cash share-based compensation expense	10,344	8,906
Changes in operating assets and liabilities:
Accounts receivable, net	1,531	(13,925)
Other assets	6,791	756
Deferred costs	(89)	(1,600)
Accounts payable and other liabilities	(12,553)	(32,607)
Deferred revenue	6,534	(12,830)
Net cash provided by operating activities	121,142	75,911
Cash flows from investing activities:
Capitalized software development costs	(19,109)	(13,190)
Capital expenditures	(24,889)	(21,976)
Data acquisition costs	(4,660)	(6,464)
Receipts from investments	3,633
Net cash used in investing activities	(45,025)	(41,630)
Cash flows from financing activities:
Proceeds from debt	300,000
Payments of debt	(230,167)	(19,790)
Fees for debt refinancing	(4,370)
Acquisition liability payment		(287)
Acquisition of noncontrolling interest	(600)
Acquisition of treasury stock	(52,663)	(65,356)
Sale of common stock	69,106	7,863
Net cash provided by (used in) financing activities	81,306	(77,570)
Effect of exchange rate changes on cash	511	(139)
Net change in cash and cash equivalents	157,934	(43,428)
Cash and cash equivalents at beginning of period	222,974	229,648
Cash and cash equivalents at end of period	380,908	186,220
Cash paid during the period for:
Interest	9,267	9,678
Income taxes	15,774	48,268
Payments on capital leases and installment payment arrangements	6,914	12,948
Other debt payments	8,253	6,842
Prepayments of debt	215,000
Non-cash investing and financing activities:
Acquisition of property and equipment under capital leases and installment payment arrangements		$ 2,157