This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

+ References+ Details

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 9

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 6

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 19

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.12)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 11

-Article 7

+ Details

Investments (Schedule Of Investment In Nonconsolidated affiliates) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended									9 Months Ended		12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Investment, beginning balance					$ 359,687				$ 357,751	$ 370,912	$ 359,687	$ 359,687	$ 357,751
Cash advances (repayments)		(5,676)				(929)						(5,676)	(929)
Acquisitions (Dispositions) of investments, net												2,704	(6,316)
Equity in earnings (loss)	3,983	6,643	3,663	4,696	3,555	13,502	5,210	5,271	2,975	13,595	11,914	18,557	26,958	5,702
Foreign currency transaction adjustment												(1,189)	(153)
Foreign currency translation adjustment												8,075	(835)
Distributions received												(11,716)	(16,789)
Other		470				0						470	0
Investment, ending balance		370,912				359,687						370,912	359,687	357,751
Arn [Member]
Investment, beginning balance					347,377				342,785		347,377	347,377	342,785
Cash advances (repayments)		(8,758)				0						(8,758)	0
Acquisitions (Dispositions) of investments, net												0	0
Equity in earnings (loss)												18,621	20,958
Foreign currency transaction adjustment												(1,189)	(153)
Foreign currency translation adjustment												8,085	(1,125)
Distributions received												(11,074)	(15,088)
Other		0				0						0	0
Investment, ending balance		353,062				347,377						353,062	347,377
All Others [Member]
Investment, beginning balance					12,310				14,966		12,310	12,310	14,966
Cash advances (repayments)		3,082				(929)						3,082	(929)
Acquisitions (Dispositions) of investments, net												2,704	(6,316)
Equity in earnings (loss)												(64)	6,000
Foreign currency transaction adjustment												0	0
Foreign currency translation adjustment												(10)	290
Distributions received												(642)	(1,701)
Other		470				0						470	0
Investment, ending balance		$ 17,850				$ 12,310						$ 17,850	$ 12,310