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Pension Benefit Plans Funded Status of HNH's Qualified Defined Benefit Pension Plans and Postretirement Benefit Plans (Details) (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
| Defined Benefit Plans Disclosure [Line Items] |
|
|
|
| Defined Benefit Plan, Other Changes, Transfers Out, Transfers of Assets RElating to RSP Participants |
$ 0 |
|
|
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |
|
|
|
| Inclusion of RSP |
(6,983) |
28,914 |
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
| Inclusion of RSP |
(6,983) |
28,914 |
|
|
Pension Plans, Defined Benefit [Member]
|
|
|
|
| Defined Benefit Plans Disclosure [Line Items] |
|
|
|
| Defined Benefit Plan, Other Changes, Transfers Out, Transfers of Assets RElating to RSP Participants |
|
(4,858) |
|
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |
|
|
|
| Benefit Obligation at January 1 |
532,619 |
472,526 |
|
| Service cost |
0 |
218 |
|
| Interest cost |
21,651 |
22,553 |
|
| Defined Benefit Plan, Actuarial Gain (Loss) |
36,227 |
47,186 |
|
| Participant contributions |
0 |
0 |
|
| Benefits paid |
(36,058) |
(33,920) |
|
| Inclusion of RSP |
(6,983) |
28,914 |
|
| Transfers (to) from RSP |
0 |
(6,838) |
|
| Benefit Obligation at December 31 |
547,456 |
532,619 |
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
| Fair value of plan assets at January 1 |
346,408 |
359,543 |
|
| Actual returns on plan assets |
10,924 |
(16,619) |
|
| Participant contributions |
0 |
0 |
|
| Benefits paid |
(36,058) |
(33,920) |
|
| Company contributions |
16,180 |
15,328 |
|
| Inclusion of RSP |
(6,983) |
28,914 |
|
| Fair Value of Plan Assets at December 31 |
330,471 |
346,408 |
|
| Funded Status |
(216,985) |
(186,211) |
|
| Accumulated Benefit Obligation (ABO) for Qualified Defined Benefit Pension Plans |
547,456 |
532,619 |
472,526 |
| Current Liability |
0 |
0 |
|
| Noncurrent Liability |
(216,985) |
(186,211) |
|
| Pension and Other Postretirement Defined Benefit Plans, Liabilities |
(216,985) |
(186,211) |
|
|
Other Postretirement Benefit Plans, Defined Benefit [Member]
|
|
|
|
| Defined Benefit Plans Disclosure [Line Items] |
|
|
|
| Defined Benefit Plan, Other Changes, Transfers Out, Transfers of Assets RElating to RSP Participants |
|
0 |
|
| Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |
|
|
|
| Benefit Obligation at January 1 |
4,092 |
3,454 |
|
| Service cost |
0 |
0 |
|
| Interest cost |
163 |
171 |
|
| Defined Benefit Plan, Actuarial Gain (Loss) |
150 |
649 |
|
| Participant contributions |
9 |
17 |
|
| Benefits paid |
(206) |
(199) |
|
| Inclusion of RSP |
0 |
0 |
|
| Transfers (to) from RSP |
0 |
0 |
|
| Benefit Obligation at December 31 |
4,208 |
4,092 |
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
| Fair value of plan assets at January 1 |
0 |
0 |
|
| Actual returns on plan assets |
0 |
0 |
|
| Participant contributions |
9 |
17 |
|
| Benefits paid |
(206) |
(199) |
|
| Company contributions |
197 |
182 |
|
| Inclusion of RSP |
0 |
0 |
|
| Fair Value of Plan Assets at December 31 |
0 |
0 |
|
| Funded Status |
(4,208) |
(4,092) |
|
| Accumulated Benefit Obligation (ABO) for Qualified Defined Benefit Pension Plans |
4,208 |
4,092 |
3,454 |
| Current Liability |
(211) |
(211) |
|
| Noncurrent Liability |
(3,997) |
(3,881) |
|
| Pension and Other Postretirement Defined Benefit Plans, Liabilities |
$ (4,208) |
$ (4,092) |
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