Supplemental Information (Details 4) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2010	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Supplemental Information
Losses (gains) on sales, disposals and involuntary conversions of long-lived assets		$ 2,806	$ 2,592	$ 8,150	$ 6,773
Litigation expenses		1,983	3,255	7,642	8,791
Foreign currency transaction losses (gains)		(290)	2,766	7,017	5,021
Other losses (gains)		(1,233)	1,603	4,436	1,192
Losses (gains) on sales and retirements of long-lived assets and other expense (income), net		3,266	10,216	27,245	21,777
Termination of employment contract				45,000
Loss on tendered notes		208,197		208,197
Provision for retirement of assets		14,044		14,044	46,264
Impairment of long-lived assets		20,000		20,000
Intangible asset impairment					74,960
Goodwill impairment					26,279
Total impairments and other charges		242,241		287,241	147,503
Superior trade name, useful life	10 years
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				431,595
Other comprehensive income (loss) before reclassifications				(35,304)
Amount reclassified from accumulated other comprehensive income (loss)				(84,660)
Net other comprehensive income (loss), net of tax		12,615	44,392	(119,964)	41,216
Balance at the end of the period		311,631		311,631
Gains (losses) on cash flow hedges
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				(2,793)
Amount reclassified from accumulated other comprehensive income (loss)				280
Net other comprehensive income (loss), net of tax				280
Balance at the end of the period		(2,513)		(2,513)
Unrealized gains (losses) on available-for-sale securities
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				134,229
Other comprehensive income (loss) before reclassifications				1,549
Amount reclassified from accumulated other comprehensive income (loss)				(85,456)
Net other comprehensive income (loss), net of tax				(83,907)
Balance at the end of the period		50,322		50,322
Defined benefit pension plan items
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				(7,632)
Amount reclassified from accumulated other comprehensive income (loss)				516
Net other comprehensive income (loss), net of tax				516
Balance at the end of the period		(7,116)		(7,116)
Foreign currency items
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				307,791
Other comprehensive income (loss) before reclassifications				(36,853)
Net other comprehensive income (loss), net of tax				(36,853)
Balance at the end of the period		$ 270,938		$ 270,938