Condensed Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities:
Net income	$ 5,703	$ 8,432
Less: Income from discontinued operations, net of taxes	1,986	(6,915)
Income from continuing operations, net of taxes	7,689	1,517
Adjustments to reconcile income from continuing operations, net of taxes to net cash provided by operating activities:
Net loss attributable to non-controlling interest	(580)
Stock-based compensation expense	857	490
Depreciation and amortization	11,342	2,040
Deferred income taxes	(13)	1,365
Gain on release of foreign currency translation, net of taxes		(2,542)
Changes in operating assets and liabilities, net of assets acquired and liabilities assumed:
Accounts receivable	(21,532)
Prepaid expenses and other current assets	(1,109)	2,088
Assets held for sale		6,216
Other assets	(111)	(790)
Accounts payable	1,177	(131)
Accrueds and other liabilities	280	(5,196)
Net cash (used in) provided by operating activities of continuing operations	(2,000)	5,057
Net cash (used in) provided by operating activities of discontinued operations	(823)	6,933
Net cash (used in) provided by operating activities	(2,823)	11,990
Cash Flows from Investing Activities:
Purchases of businesses, net of cash acquired	(52,492)	(7,530)
Purchases of property and equipment	(7,607)
Investment by non-controlling interest	75
Purchases of marketable securities	(498,964)	(491,499)
Sales of marketable securities	568,536	396,194
Maturities of marketable securities	51,804	62,321
Net cash provided by (used in) investing activities	61,352	(40,514)
Cash Flows from Financing Activities:
Repayments on capital lease obligations	(126)
Repayments on long-term debt	(2,000)
Proceeds from issuance of common stock		29
Net cash (used in) provided by financing activities	(2,126)	29
Effect of foreign currency translation on cash and cash equivalents	52	288
Net increase (decrease) in cash and cash equivalents	56,455	(28,207)
Cash and cash equivalents, beginning of period	8,487	38,276
Cash and cash equivalents, end of period	$ 64,942	$ 10,069