CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
OPERATING ACTIVITIES:
Cash used in operating activities - continuing operations	$ (50,932)	$ (44,570)
Cash used in operating activities - discontinued operations		(3,514)
Net cash used in operating activities	(50,932)	(48,084)
INVESTING ACTIVITIES:
Purchases of investments	(16,112)	(8,914)
Proceeds from sale of investments	20,282	9,875
Proceeds from maturity of investments	1,798	831
Purchases of property and equipment	(4,345)	(31,522)
Cash acquired in connection with purchase of Spigit, net of cash paid	174
Decrease (increase) in restricted deposits	2,460	(1,598)
Other investing activities, net	14	53
Cash used in investing activities - continuing operations	4,271	(31,275)
Cash provided by investing activities - discontinued operations		11,051
Net cash used in investing activities	4,271	(20,224)
FINANCING ACTIVITIES:
Proceeds from subsidiary stock offering, net	105,454
Repayment of debt	(50,955)	(8,012)
Proceeds from debt	49,911	51,139
Proceeds from debt		(1,020)
Net cash provided by financing activities - continuing operations	104,410	42,107
Effect of exchange rate changes on cash	(189)	42
Increase (decrease) in cash and cash equivalents	57,560	(26,159)
Cash and cash equivalents beginning of the period	100,115	125,547
Cash and cash equivalents end of the period	157,675	99,388
Less: cash and cash equivalents of discontinued operations at the end of the period		14,179
Cash and cash equivalents of continuing operations at the end of the period	157,675	85,209
SUPPLEMENTAL CASH FLOW INFORMATION:
Payment for federal, foreign, and state income taxes	118	3,026
Interest paid, net of amounts capitalized	4,124	2,569
Non-cash investing and financing activities:
Mortgage incurred to purchase real estate	13,153	11,058
Increase in assets from business combination	21,432
Increase in liabilities from business combination	20,377
Decrease in assets from disposition of subsidiary	24,800
Decrease in liabilities from disposition of subsidiary	18,900
Conversion of note receivable to common stock in Spigit	$ 820