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Other Comprehensive Income Reclassifications from Accumulated Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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| Reclassification Out Of Accumulated Other Comprehensive Income [Line Items] | ||||||||||||
| Prior-service costs | $ (17) | $ (17) | $ (53) | $ (51) | ||||||||
| Actuarial losses | 118 | 249 | 363 | 746 | ||||||||
| Total, before tax | 12,037 | (9,347) | 38,958 | 4,998 | ||||||||
| Tax benefit (provision) | (4,484) | 2,589 | (11,679) | 3,936 | ||||||||
| Total, net of tax | 7,553 | (6,758) | 27,279 | 8,934 | ||||||||
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Reclassification out of Accumulated Other Comprehensive Income [Member]
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| Reclassification Out Of Accumulated Other Comprehensive Income [Line Items] | ||||||||||||
| Total, net of tax | (98) | [1] | (185) | [1] | (314) | [1] | (554) | [1] | ||||
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Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
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| Reclassification Out Of Accumulated Other Comprehensive Income [Line Items] | ||||||||||||
| Prior-service costs | (17) | [1],[2] | (17) | [1],[2] | (53) | [1],[2] | (51) | [1],[2] | ||||
| Actuarial losses | (118) | [1],[2] | (249) | [1],[2] | (363) | [1],[2] | (746) | [1],[2] | ||||
| Other | (6) | [1],[2] | 0 | [1],[2] | (35) | [1],[2] | 0 | [1],[2] | ||||
| Total, before tax | (141) | [1] | (266) | [1] | (451) | [1] | (797) | [1] | ||||
| Tax benefit (provision) | 43 | [1] | 81 | [1] | 137 | [1] | 243 | [1] | ||||
| Total, net of tax | $ (98) | [1] | $ (185) | [1] | $ (314) | [1] | $ (554) | [1] | ||||
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