Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows from Operating Activities:
Net Income	$ 77,967	$ 56,174	$ 25,971
Reconciling Items:
Depreciation and Amortization	8,351	7,158	5,432
Amortization of Intangible Assets	5,291	4,891	2,672
Goodwill Impairment		2,816
Share-based Compensation Expense	3,932	3,110	296
Equity in Losses of Affiliate	530
Bad Debt Expense	967	1,534
Deferred Income Taxes	(381)	(1,119)	(1,179)
Changes in Operating Assets and Liabilities, net of Acquisitions:
Accounts Receivable	812	(18,259)	(21,420)
Prepaid Expenses and Other Current Assets	747	(9,851)	117
Other Assets	(4,892)	(2,799)	(616)
Accounts Payable and Accrued Expenses	14,760	8,180	19,425
Other Current and Non-current Liabilities	3,527	977	2,586
Net Cash Flows from Operating Activities	111,611	52,812	33,284
Cash Flows from Investing Activities:
Additions to Premises and Equipment	(16,442)	(11,614)	(7,536)
Acquisition of Business, net of Cash Acquired	(2,515)	(26,830)
Investment in Equity Affiliate	(15,000)
Change in Restricted Cash	887	(1,045)
Net Cash Flows from Investing Activities	(33,070)	(39,489)	(7,536)
Cash Flows from Financing Activities:
Principal Payments on Capital Lease Obligations	(696)	(743)	(692)
Proceeds from Stock Option Exercises	1,024	3,997	889
Purchase of Treasury Stock	(62,151)	(17,788)
Contributions from Non-controlling Interests	49	41
Distributions to Non-controlling Interests	(6,776)	(7,152)
Net Distribution to Parent			(1,354)
Payments of Line of Credit			(1,123)
Net Cash Flows from Financing Activities	(68,550)	(21,645)	(2,280)
Net Increase (Decrease) in Cash and Cash Equivalents	9,991	(8,322)	23,468
Cash and Cash Equivalents at the Beginning of the Year	22,134	30,456	6,988
Cash and Cash Equivalents at the End of the Year	32,125	22,134	30,456
Supplemental Cash Flow Information
Interest Paid	83	108	25
Income Taxes (Received) Paid, net	(1,956)	6,069	795
Non-Cash Investing and Financing Activities
Shares issued in Connection with Acquisition		23,900
Reduction in Income Tax Payable from Tax Amortizable Goodwill	3,367	3,029	2,216
Increase in Common Stock due to the Company's Conversion to a Luxembourg Societe Anonyme			$ 3,283