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Consolidated Statement of Cash Flows (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash flows from operating activities    
Net income $ 154,385 $ 128,260
Add (deduct) adjustments to reconcile net income to net cash flows from operating activities    
Depreciation, amortization and accretion 392,425 294,240
Bad debts expense 32,715 30,659
Stock-based compensation expense 6,530 11,057
Deferred income taxes, net (26,527) 30,479
Equity in earnings of unconsolidated entities (62,437) (46,768)
Distributions from unconsolidated entities 45,370 6,743
Loss on asset disposals, net 14,452 4,705
(Gain) loss on sale of business and other exit costs, net (242,093) (4,213)
(Gain) loss on investments (18,527) 3,728
Noncash interest expense 526 902
Other operating activities 489 321
Changes in assets and liabilities from operations    
Accounts receivable (1,544) (13,383)
Inventory (7,644) (56,039)
Accounts payable - trade 67,457 (20,987)
Accounts payable - affiliate 4,734 3,129
Customer deposits and deferred revenues 8,663 21,131
Accrued taxes 147,566 85,327
Accrued interest 176 149
Other assets and liabilities (68,131) (67,203)
Cash flows from operating activities 448,585 412,237
Cash flows from investing activities    
Cash used for additions to property, plant and equipment (323,157) (430,225)
Cash paid for acquisitions and licenses (14,150) (12,647)
Cash received from divestitures 480,000 49,786
Cash paid for investments   (45,000)
Cash received for investments   45,000
Other investing activities 3,993 (3,097)
Cash flows from investing activities 146,686 (396,183)
Cash flows from financing activities    
Repayment of long-term debt (71) (45)
Common shares reissued for benefit plans, net of tax payments (2,206) (2,465)
Common shares repurchased (18,425)  
Dividends paid (482,270)  
Distributions to noncontrolling interests (3,292) (643)
Other financing activities 56 568
Cash flows from financing activities (506,208) (2,585)
Net increase in cash and cash equivalents 89,063 13,469
Cash and cash equivalents    
Beginning of period 378,358 424,155
End of period $ 467,421 $ 437,624