CONDENSED CONSOLIDATED STATEMENTS 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	$ 20,704	$ 5,297
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	53,606	50,192
Provision for doubtful accounts	6,325	3,856
Amortization of debt discount and debt issuance costs	1,747	873
Stock-based compensation	1,908	1,890
Deferred income taxes	108	118
Equity in earnings of an unconsolidated affiliate	(2,331)	(755)
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	(10,225)	(11,063)
Materials and supplies, prepayments, and other current assets	(3,401)	3,570
Income tax receivable	11,545
Accounts payable and accrued liabilities, advance payments and deposits and other current liabilities	(5,054)	(7,968)
Accrued taxes	9,156	(700)
Other	(4,480)	(2,281)
Net cash provided by operating activities	79,608	43,029
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(32,272)	(45,428)
Cash acquired in business combinations		4,087
Decrease in restricted cash		467
Net cash used in investing activities	(32,272)	(40,874)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from borrowing under term loan	275,000
Proceeds from borrowings under revolver loan	46,378	23,095
Principal repayments of term loan	(252,953)	(6,515)
Principal repayments of revolver loan	(74,534)
Proceeds from stock option exercises	946	52
Dividends paid on common stock	(7,119)	(6,771)
Distributions to non-controlling interests	(929)	(1,608)
Payments of debt issuance costs	(3,564)	(931)
Repurchase of non-controlling interests	(80)	(446)
Investments made by non-controlling interests	805	507
Purchase of common stock	(184)	(91)
Net cash provided by (used in) financing activities	(16,234)	7,292
NET CHANGE IN CASH AND CASH EQUIVALENTS	31,102	9,447
CASH AND CASH EQUIVALENTS, beginning of the period	48,735	37,330
CASH AND CASH EQUIVALENTS, end of the period	$ 79,837	$ 46,777

This element represents the net change during the reporting period in the aggregate amount of obligations and expenses incurred but not paid, which also includes the amount of prepayment by customers for goods or services to be provided and the amount of customer money held in customer accounts, which may also include other current liabilities.

No definition available.