CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net Income	$ 62,100	$ 84,591
Adjustments to reconcile Net Income to net cash from operating activities:
Depreciation and amortization	29,594	23,328
Stock-based compensation expense	6,820	10,168
Excess income tax benefit from stock-based compensation	(18)	0
Adjustment of investments to fair value	0	25
Deferred Income Taxes	412	(3,059)
(Gain) loss on sale of equipment	(896)	350
Gain on bargain purchase	(4,000)	0
Other Long-term Liabilities	(6,823)	(3,677)
Other non-cash items	(3,251)	0
Changes in other components of working capital	(207,854)	(147,675)
NET CASH USED IN OPERATING ACTIVITIES	(123,916)	(35,949)
Cash Flows from Investing Activities:
Acquisitions, net of cash balance acquired	(337,873)	0
Business acquisition related payments	(3,000)	(6,734)
Acquisition of Property and Equipment	(39,694)	(16,135)
Proceeds from sale of Property and Equipment	6,526	1,856
Proceeds from sale of available-for-sale securities	7,388	6,918
Change in Restricted Cash	(7,196)	(23,541)
Investment in other activities	0	53
NET CASH USED IN INVESTING ACTIVITIES	(373,849)	(37,583)
Cash Flows from Financing Activities:
Proceeds from Debt	567,782	8,724
Repayment of Debt	(263,059)	(28,803)
Common Stock repurchased under share repurchase program	0	(39,391)
Excess income tax benefit from stock-based compensation	18	0
Issuance of Common Stock and effect of cashless exercise	(44)	(325)
Debt issuance costs	(4,989)	(1,905)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	299,708	(61,700)
Net Decrease in Cash and Cash Equivalents	(198,057)	(135,232)
Cash and Cash Equivalents at Beginning of Year	471,378	348,309
Cash and Cash Equivalents at End of Period	273,321	213,077
Supplemental Disclosure of Cash Paid During the Period For:
Interest	17,714	4,215
Income taxes	40,225	35,705
Supplemental Disclosure of Non-cash Transactions:
Property and Equipment acquired through financing arrangements	1,604	6,054
Grant date fair value of Common Stock issued for services	$ 5,061	$ 19,673

Cash outflow representing the payment of all, or a portion, of the deferred purchase price of a previous business acquisition.

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified equity-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element reduces net cash provided by operating activities.

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The fair value of assets acquired in noncash investing or financing activities.

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The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss).

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Amount of the excess of the fair value of acquired net assets over the cost of an acquired business after pro rata reduction of the amounts that otherwise would have been assigned to acquired assets except financial assets other than investments accounted for by the equity method, assets to be disposed of by sale, deferred tax assets, prepaid assets relating to pension and postretirement benefit plans, and other current assets. This amount is considered an extraordinary item and often referred to as negative goodwill. This element is gross of the related tax effect.

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The amount of cash paid for interest during the period.

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The net cash inflow or outflow from financing activity for the period.

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The net cash inflow or outflow from investing activity.

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