Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 80,036	$ 68,222
Adjustments to reconcile net income to net cash provided by operating activities -
DepreciationDepletionAndAmortizationIncludingDiscOps	64,919	46,789
Depreciation and amortization	64,919	46,780
Amortization of debt issuance costs and premium	3,541	3,234
Amortization of unearned income and initial direct costs on direct financing leases	(11,833)	(12,160)
Payments received under direct financing leases	15,946	15,946
Equity in earnings of investments in equity investees	(27,757)	(16,618)
Cash distributions of earnings of equity investees	38,031	24,352
Non-cash effect of equity-based compensation plans	7,624	10,579
Deferred and other tax liabilities	1,234	(186)
Unrealized gains on derivative transactions	(5,680)	(2,802)
Other, net	3,008	336
Net changes in components of operating assets and liabilities, (Note 12)	39,050	(28,354)
Net cash provided by operating activities	208,119	109,338
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to acquire fixed and intangible assets	(336,061)	(199,634)
Cash distributions received from equity investees - return of investment	11,352	8,272
Investments in equity investees	(40,426)	(71,443)
Payments to Acquire Businesses, Gross	0	230,921
Proceeds from asset sales	178	810
Other, net	(4,706)	(1,004)
Net cash used in investing activities	(369,663)	(493,920)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on senior secured credit facility	1,420,900	1,234,500
Repayments on senior secured credit facility	(1,668,700)	(1,323,200)
Proceeds from issuance of senior unsecured notes, including premium	350,000	350,000
Debt issuance costs	(11,857)	(8,157)
Proceeds from Issuance of Common Limited Partners Units	225,610	263,597
Distributions to common unitholders	(146,350)	(122,097)
Other, net	0	(4,484)
Net cash provided by financing activities	169,603	390,159
Net increase in cash and cash equivalents	8,059	5,577
Cash and cash equivalents at beginning of period	8,866	11,282
Cash and cash equivalents at end of period	$ 16,925	$ 16,859