Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash Flows From Operating Activities:
Net income	$ 11,852	$ 6,019
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations	0	1,476
Loss from equity method investees	3,402	218
Stock-based compensation expense	2,305	1,979
Depreciation and amortization	18,127	14,361
Deferred income tax benefit	(1,745)	(2,364)
Gain on sales of marketable securities	(4,065)	(1,834)
Loss on extinguishment of debt	0	463
Loss on financial instrument obligations	752	0
Loss on change to equity method at fair value	568	0
Other	561	155
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(4,402)	2,419
Prepaid expenses and other assets	709	(1,981)
Accounts payable and other liabilities	2,725	(1,690)
Net cash used in operating activities of discontinued operations	0	(1,894)
Net cash provided by operating activities	30,789	17,327
Cash Flows From Investing Activities:
Purchases of businesses, net of cash acquired	(517)	(1,125)
Purchases of property and equipment	(13,610)	(6,052)
Proceeds from sale of property and equipment	413	527
Investments in equity method investees	(144)	(9,202)
Purchases of marketable securities	(99,296)	(161,288)
Sales of marketable securities	105,112	65,474
Maturities of marketable securities	4,302	134,669
Proceeds from issuance of financial instrument obligations	171	0
Other investments	(3,000)	(25,000)
Reclassification of restricted cash	(20,264)	0
Net cash used in investing activities of discontinued operations	0	(196)
Net cash used in investing activities	(26,833)	(2,193)
Cash Flows From Financing Activities:
Repurchases of common stock - treasury shares	(10,354)	(17,816)
Repurchases of common stock - reverse/forward stock split	(10,071)	0
Proceeds from issuance of long-term debt	0	70,000
Repayment of subordinated notes	(346)	0
Repayments of capital lease obligations	(289)	(314)
Repayment of subordinated notes	0	(1,130)
Repayments of long-term debt	(9,911)	(15,500)
Other financing activities	60	0
Net cash provided by (used in) financing activities	(30,911)	35,240
Net increase (decrease) in cash and cash equivalents	(26,955)	50,374
Effect of foreign currency translation on cash and cash equivalents	30	(35)
Cash and cash equivalents, beginning balance	73,602	71,556
Cash and cash equivalents, ending balance	$ 46,677	$ 121,895