Interim Pension and Other Postretirement Benefits (Details) (USD $)	0 Months Ended	3 Months Ended
	Oct. 02, 2013	Dec. 31, 2013 Pension Benefits [Member]	Dec. 31, 2012 Pension Benefits [Member]	Dec. 31, 2013 Pension Benefits [Member] Minimum [Member]	Dec. 31, 2013 Pension Benefits [Member] Maximum [Member]	Dec. 31, 2013 Other Benefits [Member]	Dec. 31, 2012 Other Benefits [Member]	Dec. 31, 2013 Other Benefits [Member] Minimum [Member]	Dec. 31, 2013 Other Benefits [Member] Maximum [Member]
Components of net periodic pension cost [Abstract]
Service Cost		$ 4,738,000	$ 5,202,000			$ 4,196,000	$ 4,700,000
Interest Cost		6,824,000	6,025,000			3,988,000	3,241,000
Expected return on assets		(5,901,000)	(5,739,000)			(1,292,000)	(997,000)
Amortization of transition (asset)/obligation		0	0			68,000	270,000
Amortization of prior service (credit)/cost		(34,000)	(35,000)			(363,000)	(362,000)
Amortization of actuarial (gain) loss		3,932,000	5,561,000			158,000	1,049,000
Settlement loss		4,539,000	0			0	0
Net periodic pension cost		14,098,000	11,014,000			6,755,000	7,901,000
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost Abstract
Discount Rate		4.95%	4.04%			4.95%	4.04%
Rate of compensation increase		3.50%	3.50%
Expected return on plan assets		7.25%	7.75%			4.60%	4.70%
Current Year Benefit Plan Contributions [Abstract]
Contributions Actual		4,700,000				5,900,000
Contributions Remaining, Estimate				10,000,000	15,000,000			15,000,000	20,000,000
Benefit Payment	$ 16,800,000