Pensions and Other Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Defined benefit pension plan and combined supplemental executive retirement plans ("SERPs"') [Member]

Defined Benefit Plan Disclosure [Line Items]

Net periodic benefit expense

	Three Months Ended June 30,						Six Months Ended June 30,
(Amounts in thousands)	2012			2011			2012			2011
Interest cost	$	2,639		$	2,841		$	5,278		$	5,682
Expected return on plan assets		(1,968	)		(2,056	)		(3,937	)		(4,111	)
Amortization of prior service cost		7			7			14			14
Recognized net actuarial loss		1,470			1,572			2,940			3,144
Net periodic benefit expense	$	2,148		$	2,364		$	4,295		$	4,729

Net periodic benefit expense amortized from Accumulated other comprehensive loss

	Three Months Ended June 30,						Six Months Ended June 30,
(Amounts in thousands)	2012			2011			2012			2011
Net actuarial loss	$	1,470		$	1,572		$	2,940		$	3,144
Tax benefit on net actuarial loss		(559	)		(597	)		(1,117	)		(1,195	)
Prior service costs		7			7			14			14
Tax benefit on prior service costs		(3	)		(2	)		(6	)		(5	)
Net amortization from accumulated other comprehensive income	$	915		$	980		$	1,831		$	1,958

Postretirement benefit plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Net periodic benefit expense

	Three Months Ended June 30,						Six Months Ended June 30,
(Amounts in thousands)	2012			2011			2012			2011
Interest cost	$	24		$	13		$	48		$	26
Amortization of prior service credit		(157	)		(156	)		(313	)		(313	)
Recognized net actuarial loss		97			61			195			122
Net periodic benefit expense	$	(36	)	$	(82	)	$	(70	)	$	(165	)

Net periodic benefit expense amortized from Accumulated other comprehensive loss

	Three Months Ended June 30,						Six Months Ended June 30,
(Amounts in thousands)	2012			2011			2012			2011
Net actuarial loss	$	97		$	61		$	195		$	122
Tax benefit on net actuarial loss		(37	)		(24	)		(74	)		(47	)
Prior service costs		(157	)		(156	)		(313	)		(313	)
Tax expense on prior service costs		60			59			119			119
Net amortization from accumulated other comprehensive income	$	(37	)	$	(60	)	$	(73	)	$	(119	)