Retirement Plan (Net Periodic Pension Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended							6 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Net Periodic Benefit Expense [Member]	Dec. 31, 2012 Net Periodic Benefit Expense [Member]	Dec. 31, 2011 Net Periodic Benefit Expense [Member]	Dec. 31, 2013 Defined Benefit Post-retirement Health Coverage [Member]	Dec. 31, 2012 Defined Benefit Post-retirement Health Coverage [Member]	Dec. 31, 2011 Defined Benefit Post-retirement Health Coverage [Member]	Jun. 30, 2012 Pension Plan, Defined Benefit [Member]	Dec. 31, 2013 Pension Plan, Defined Benefit [Member]	Dec. 31, 2012 Pension Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost – benefit earned during the year		$ 0	$ 679	$ 5,070	$ 1,112	$ 1,892	$ 1,569		$ 0	$ 679
Interest cost on projected benefit obligations		1,797	3,962	5,125	665	3,519	2,193		1,797	3,962
Amortization of transition obligation (1)					0	0	44
Expected return on plan assets (1)		(92)	(3,798)	(5,230)
Amortization of prior service cost (1)		0	67	390	(5,896)	(2,221)	0
Amortization of net loss (1)		1,386	1,933	2,126	130	269	114
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments		0	899	1,065
Loss on settlement (1)	39,500	36,203	2,855	3,951	1,726	0	0
Loss on plan termination		3,293	0	0				7,102	0
Net periodic pension expense		$ 42,587	$ 6,597	$ 12,497	$ (2,263)	$ 3,459	$ 3,920