7. Accumulated Other Comprehensive Income 7. Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended				9 Months Ended				3 Months Ended		9 Months Ended						3 Months Ended		9 Months Ended						9 Months Ended				9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Accumulated Translation Adjustment [Member]	Sep. 30, 2013 Accumulated Translation Adjustment [Member]	Dec. 31, 2013 Accumulated Translation Adjustment [Member]	Dec. 31, 2012 Accumulated Translation Adjustment [Member]	Sep. 30, 2014 Accumulated Defined Benefit Plans Adjustment [Member]	Sep. 30, 2013 Accumulated Defined Benefit Plans Adjustment [Member]	Dec. 31, 2013 Accumulated Defined Benefit Plans Adjustment [Member]	Dec. 31, 2012 Accumulated Defined Benefit Plans Adjustment [Member]	Sep. 30, 2014 Accumulated Defined Benefit Plans Adjustment [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2013 Accumulated Defined Benefit Plans Adjustment [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2014 Accumulated Defined Benefit Plans Adjustment [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2013 Accumulated Defined Benefit Plans Adjustment [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2014 Accumulated Net Unrealized Investment Gain (Loss) [Member]	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss) [Member]	Dec. 31, 2013 Accumulated Net Unrealized Investment Gain (Loss) [Member]	Dec. 31, 2012 Accumulated Net Unrealized Investment Gain (Loss) [Member]	Sep. 30, 2014 Accumulated Net Unrealized Investment Gain (Loss) [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss) [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2014 Accumulated Net Unrealized Investment Gain (Loss) [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss) [Member] Reclassification Out Of Accumulated Other Comprehensive Income [Member]	Sep. 30, 2014 Parent [Member]	Sep. 30, 2013 Parent [Member]	Dec. 31, 2013 Parent [Member]	Dec. 31, 2012 Parent [Member]	Sep. 30, 2014 Noncontrolling Interest [Member]	Sep. 30, 2013 Noncontrolling Interest [Member]	Dec. 31, 2013 Noncontrolling Interest [Member]	Dec. 31, 2012 Noncontrolling Interest [Member]	Sep. 30, 2014 Accumulated Other Comprehensive Income (Loss) [Member]	Sep. 30, 2013 Accumulated Other Comprehensive Income (Loss) [Member]	Dec. 31, 2013 Accumulated Other Comprehensive Income (Loss) [Member]	Dec. 31, 2012 Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Selling, general and administrative expense	$ (202,550,000)	$ (202,238,000)	$ (600,663,000)	$ (583,486,000)										$ (200,000)	$ 0	$ (400,000)	$ (200,000)
Other (income) expense, net	(613,000)	(667,000)	(9,662,000)	(10,711,000)																		0	400,000	0	200,000
Accumulated other comprehensive income	261,038,000		261,038,000		340,717,000	119,100,000	177,800,000	189,400,000	172,900,000	(7,200,000)	(8,100,000)	(8,100,000)	(8,100,000)					149,100,000	146,600,000	159,400,000	109,700,000					261,000,000	316,300,000	340,700,000	274,500,000	0	0	0	(200,000)	261,000,000	316,300,000	340,700,000	274,300,000
Other Comprehensive Income (Loss), before Reclassifications, before Tax						(70,300,000)	5,100,000			600,000	0							(16,300,000)	58,100,000							(86,000,000)	63,200,000			0	0			(86,000,000)	63,200,000
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax						0	(200,000)			400,000	0							0	200,000							400,000	0			0	200,000			400,000	200,000
Other Comprehensive Income (Loss), Tax						0	0			(100,000)	0							6,000,000	(21,400,000)							5,900,000	(21,400,000)			0	0			5,900,000	(21,400,000)
Total other comprehensive income (loss) net of tax	$ (90,247,000)	$ 48,932,000	$ (79,679,000)	$ 41,958,000		$ (70,300,000)	$ 4,900,000			$ 900,000	$ 0							$ (10,300,000)	$ 36,900,000							$ (79,700,000)	$ 41,800,000			$ 0	$ 200,000			$ (79,700,000)	$ 42,000,000