Consolidated Condensed Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 416,746	$ 479,574
Short-term investments	63,580	79,976
Accounts receivable and unbilled services, net	505,007	435,876
Income tax receivable	17,469	12,327
Investigator advances	13,008	16,032
Prepaid expenses	25,699	24,535
Deferred tax assets	41,334	30,910
Cash held in escrow	2,288	10,304
Other current assets	17,979	44,172
Total current assets	1,103,110	1,133,706
Property and equipment, net	404,369	385,863
Goodwill	292,914	291,217
Long-term investments		78,747
Other investments	77,577	47,833
Intangible assets	28,207	31,444
Other assets	44,765	23,236
Total assets	1,950,942	1,992,046
Liabilities and Equity
Accounts payable	37,726	29,858
Payables to investigators	65,468	56,612
Accrued income taxes	6,064	1,918
Other accrued expenses	204,936	208,128
Unearned income	337,086	317,191
Total current liabilities	651,280	613,707
Accrued income taxes	34,924	32,924
Accrued pension liability	11,858	10,989
Deferred rent	15,285	16,411
Deferred tax liabilities	28,782	16,552
Other liabilities	8,118	10,796
Total liabilities	750,247	701,379
Redeemable noncontrolling interests	2,125	1,657
Shareholders' equity:
Common stock	5,680	5,952
Paid-in capital	619,756	609,281
Retained earnings	583,411	682,160
Accumulated other comprehensive loss	(17,593)	(17,140)
Total shareholders' equity	1,191,254	1,280,253
Noncontrolling interests	7,316	8,757
Total equity	1,198,570	1,289,010
Total liabilities and equity	$ 1,950,942	$ 1,992,046