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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Cash Flows from Operating Activities:    
Net income $ 39,637 $ 24,404
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization expense 46,230 42,926
Amortization of debt related items 2,424 (1,173)
Gain from sale or disposition of assets (24) (9,204)
Asset impairment loss 2,067 0
Deferred income tax expense (benefit) 3,054 (1,192)
Equity in loss of joint ventures 4,306 11,143
Distributions of equity in earnings of joint ventures 2,366 4,652
Changes in current assets and current liabilities (Note 11) (38,795) 73,586
Other, net 2,060 (742)
Net cash provided by operating activities 63,325 144,400
Cash Flows from Investing Activities:    
Capital expenditures (54,486) (52,564)
Change in accounts payable related to capital expenditures (8,560) 0
Proceeds from sale or disposition of assets 66 112,715
Increase in note receivable from related party (13,328) (63,489)
Other, net (23) 220
Net cash used in investing activities (76,331) (3,118)
Cash Flows from Financing Activities:    
Proceeds from long-term debt borrowings 245,213 334,226
Proceeds from note offering, net of issuance costs 0 391,217
Long-term debt repayments (189,280) (718,205)
Short-term debt repayments 0 (577)
Distributions to unitholders and general partner (98,051) (98,051)
Payments for termination of interest rate swaps 0 (16,255)
Other, net (584) 76
Net cash used in financing activities (42,702) (107,569)
Effect of foreign exchange rate changes on cash (2,437) (802)
Net (decrease) increase in cash and cash equivalents (58,145) 32,911
Cash and cash equivalents as of the beginning of the period 100,743 83,602
Cash and cash equivalents as of the end of the period $ 42,598 $ 116,513