Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities
Net income	$ 128,260	$ 121,362
Add (deduct) adjustments to reconcile net income to net cash flows from operating activities
Depreciation, amortization and accretion	294,240	289,917
Bad debts expense	30,659	27,677
Stock-based compensation expense	11,057	10,798
Deferred income taxes, net	30,479	80,371
Equity in earnings of unconsolidated entities	(46,768)	(43,360)
Distributions from unconsolidated entities	6,743	47,143
Loss on asset disposals, net	492	3,959
(Gain) loss on investment	3,728	(13,373)
Noncash interest expense	902	9,152
Other operating activities	321	1,044
Changes in assets and liabilities from operations
Accounts receivable	(13,383)	(35,907)
Inventory	(56,039)	(48,504)
Accounts payable - trade	(20,987)	23,835
Accounts payable - affiliate	3,129	5,102
Customer deposits and deferred revenues	21,131	22,376
Accrued taxes	85,327	11,525
Accrued interest	149	111
Other assets and liabilities	(67,203)	(75,128)
Cash flows from operating activities	412,237	438,100
Cash flows from investing activities
Cash used for additions to property, plant and equipment	(430,225)	(265,394)
Cash paid for acquisitions and licenses	(12,647)	(22,167)
Cash received from divestitures	49,786
Cash paid for investments	(45,000)	(20,000)
Cash received for investments	45,000	75,000
Other investing activities	(3,097)	2,691
Cash flows from investing activities	(396,183)	(229,870)
Cash flows from financing activities
Repayment of long-term debt	(45)	(330,043)
Issuance of long-term debt		342,000
Common shares reissued for benefit plans, net of tax payments	(2,465)	1,264
Common shares repurchased		(62,308)
Payment of debt issuance costs		(11,229)
Distributions to noncontrolling interests	(643)	(877)
Other financing activities	568	163
Cash flows from financing activities	(2,585)	(61,030)
Cash classified as held for sale		(5,687)
Net increase in cash and cash equivalents	13,469	141,513
Cash and cash equivalents
Beginning of period	424,155	276,915
End of period	$ 437,624	$ 418,428