Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 206,129	$ 172,252
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	175,223	175,313
Share-based compensation expense	33,332	47,950
Provision for deferred income taxes	(36,301)	(2,829)
Changes in assets and liabilities:
Receivables, net	(16,712)	(12,301)
Inventory	461	(7,411)
Prepaid expenses and other	13,600	24,173
Accounts payable	35,730	30,118
Accrued income taxes	75,323	21,378
Deferred revenue	(72,800)	14,768
Other accrued liabilities	(38,922)	(12,977)
Net cash provided by operating activities	375,063	450,434
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(42,393)	(75,925)
Capitalized software development costs	(56,300)	(83,550)
Purchases of investments	(8,439)	(321,670)
Sales and maturities of investments	99,638	306,935
Purchase of other intangibles	(4,703)	(7,975)
Net cash used in investing activities	(12,197)	(182,185)
CASH FLOWS FROM FINANCING ACTIVITIES:
Long-term debt issuance	0	500,000
Repayments of Long-term Debt	(225,000)	0
Proceeds from exercise of stock options	63,394	36,514
Payments to taxing authorities in connection with shares directly withheld from associates	(1,583)	(4,897)
Treasury stock purchases	0	(341,715)
Dividends paid	(79,183)	(67,477)
Other financing activities	1,038	(5,310)
Net cash provided by (used in) financing activities	(241,334)	117,115
Effect of exchange rate changes on cash and cash equivalents	(1,847)	(3,118)
Net increase (decrease) in cash and cash equivalents	119,685	382,246
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 709,532	$ 997,861