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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (46,593) $ (48,158)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:    
Goodwill and asset impairment 4,123 85,661
Depreciation and amortization expense 38,235 40,126
Bad debt expense 14,042 17,779
Compensation expense related to share-based awards 3,406 5,735
Loss on sale of business 6,934  
Loss on disposition of property and equipment 103 287
Changes in operating assets and liabilities (87,225) (84,853)
Net cash (used in) provided by operating activities (66,975) 16,577
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of available-for-sale investments (34,570) (108,198)
Sales of available-for-sale investments 34,485 108,188
Purchases of property and equipment (10,005) (19,990)
Payments of cash upon sale of business (2,525)  
Business acquisition, net of acquired cash   (2,873)
Other 9 (120)
Net cash used in investing activities (12,606) (22,993)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Purchase of treasury stock   (56,431)
Issuance of common stock 565 883
Payments of contingent consideration   (5,818)
Payment on borrowings (80,000)  
Change in restricted cash 85,912  
Payments of assumed loans upon business acquisition   (318)
Payments of capital lease obligations (210) (641)
Net cash provided by (used in) financing activities 6,267 (62,325)
EFFECT OF FOREIGN CURRENCY EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS: (1,381) (2,539)
NET DECREASE IN CASH AND CASH EQUIVALENTS (74,695) (71,280)
DISCONTINUED OPERATIONS CASH ACTIVITY INCLUDED ABOVE:    
Add: Cash balance of discontinued operations, beginning of the period 63  
Less: Cash balance of discontinued operations, end of the period 6 35
CASH AND CASH EQUIVALENTS, beginning of the period 240,559 280,592
CASH AND CASH EQUIVALENTS, end of the period $ 165,921 $ 209,277