Consolidating Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current Assets        
Cash and cash equivalents $ 8,783 $ 14,776 $ 80,194  
Restricted cash 110 3,536    
Accounts receivable-net 87,086 103,627    
Other current assets 44,266 23,628    
Current assets held for sale 21,446 20,324    
Total current assets 161,691 165,891    
Property, plant and equipment, net 498,541 579,022    
Equity investments 4,032 8,279    
Intangible assets, net 149,363 173,876    
Goodwill 408,696 415,176 90,008  
Other 21,136 25,510    
Long-term assets held for sale 167,304 276,585    
TOTAL ASSETS 1,410,763 1,644,339    
Current Liabilities        
Accounts payable 33,229 23,401    
Accrued expenses 63,431 46,546    
Current portion of contigent consideration 13,113 1,568    
Current portion of long-term debt 5,464 4,699    
Current liabilities of discontinued operations 9,301 10,256    
Total current liabilities 124,538 86,470    
Deferred income taxes 42,982 88,396    
Long-term debt, less current portion 549,713 561,427    
Long-term contingent consideration 2,344 8,863    
Other long-term liabilities 14,428 10,826    
Long-term liabilities of discontinued operations 32,389 40,596    
Total shareholders equity 644,369 847,761 341,810 303,077
TOTAL LIABILITIES AND EQUITY 1,410,763 1,644,339    
Parent
        
Current Assets        
Cash and cash equivalents 3,839 5,819 79,528  
Other current assets 33,809 10,509    
Total current assets 37,648 16,328    
Property, plant and equipment, net 2,396 44    
Equity investments 742,342 901,411    
Other 410,774 475,829    
TOTAL ASSETS 1,193,160 1,393,612    
Current Liabilities        
Accounts payable 3,784 757    
Accrued expenses 43,274 17,833    
Total current liabilities 47,058 18,590    
Deferred income taxes (34,275) (46,161)    
Long-term debt, less current portion 535,221 546,079    
Other long-term liabilities 787 27,343    
Total shareholders equity 644,369 847,761    
TOTAL LIABILITIES AND EQUITY 1,193,160 1,393,612    
Guarantor Subsidiaries
        
Current Assets        
Cash and cash equivalents 3,201 8,101 666  
Restricted cash 110 3,536    
Accounts receivable-net 86,256 102,867    
Other current assets 10,371 13,117    
Current assets held for sale 21,446 20,324    
Total current assets 121,384 147,945    
Property, plant and equipment, net 485,586 569,445    
Equity investments 650 597    
Intangible assets, net 148,063 172,426    
Goodwill 398,024 404,732    
Other 120,786 149,045    
Long-term assets held for sale 167,304 276,585    
TOTAL ASSETS 1,441,797 1,720,775    
Current Liabilities        
Accounts payable 27,850 22,429    
Accrued expenses 19,941 28,651    
Current portion of contigent consideration 13,113 1,568    
Current portion of long-term debt 5,464 4,699    
Current liabilities of discontinued operations 9,301 10,256    
Total current liabilities 75,669 67,603    
Deferred income taxes 77,257 134,557    
Long-term debt, less current portion 14,492 15,348    
Long-term contingent consideration 2,344 7,363    
Other long-term liabilities 513,961 573,826    
Long-term liabilities of discontinued operations 32,389 40,596    
Total shareholders equity 725,685 881,482    
TOTAL LIABILITIES AND EQUITY 1,441,797 1,720,775    
Non-Guarantor Subsidiaries
        
Current Assets        
Cash and cash equivalents 1,743 856    
Accounts receivable-net 830 760    
Other current assets 86 2    
Total current assets 2,659 1,618    
Property, plant and equipment, net 10,559 9,533    
Intangible assets, net 1,300 1,450    
Goodwill 10,672 10,444    
TOTAL ASSETS 25,190 23,045    
Current Liabilities        
Accounts payable 1,595 215    
Accrued expenses 216 62    
Total current liabilities 1,811 277    
Long-term contingent consideration   1,500    
Other long-term liabilities 10,104 9,021    
Total shareholders equity 13,275 12,247    
TOTAL LIABILITIES AND EQUITY 25,190 23,045    
Consolidation, Eliminations
        
Current Assets        
Equity investments (738,960) (893,729)    
Other (510,424) (599,364)    
TOTAL ASSETS (1,249,384) (1,493,093)    
Current Liabilities        
Other long-term liabilities (510,424) (599,364)    
Total shareholders equity (738,960) (893,729)    
TOTAL LIABILITIES AND EQUITY $ (1,249,384) $ (1,493,093)