Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 84,611us-gaap_ProfitLoss	$ 74,820us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities (See Note 1)	(6,681)	(29,328)
Net cash provided by operating activities	77,930	45,492
Cash flows from investing activities:
Additions to restricted cash	(4)us-gaap_IncreaseInRestrictedCash	0us-gaap_IncreaseInRestrictedCash
Additions to property and equipment	(7,386)	(7,627)
Additions to capitalized software	(7,989)us-gaap_PaymentsForSoftware	(9,408)us-gaap_PaymentsForSoftware
Purchases of marketable securities	(4,107)	(6,645)
Prepayments and maturities of marketable securities	7,375	9,077
Receipt of contingent payment from sale of SEI AK	2,791	0
Purchases of other investments	(1,000)	0
Net cash used in investing activities	(10,320)	(14,603)
Cash flows from financing activities:
Purchase and retirement of common stock	(67,534)	(65,948)
Proceeds from issuance of common stock	19,209	35,793
Tax benefit on stock options exercised	3,268	5,409
Payment of dividends	(40,178)us-gaap_PaymentsOfDividends	(37,314)us-gaap_PaymentsOfDividends
Net cash used in financing activities	(85,235)	(62,060)
Effect of exchange rate changes on cash and cash equivalents	(6,561)	(1,550)
Net decrease in cash and cash equivalents	(24,186)	(32,721)
Cash and cash equivalents, beginning of period	667,446	578,273
Cash and cash equivalents, end of period	$ 643,260	$ 545,552

The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method.

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