XML 21 R29.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2015
Accumulated Other Comprehensive Income [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table presents changes in Accumulated Other Comprehensive Income by component, net of tax, for the three months ended March 31, 2015 and 2014:
| Losses on Interest Rate Swaps(A) |  | Post Retirement Benefit Plan Items(B) |  | Total
2014: |  |  |  |  |
Balance at December 31, 2013 | $ | (30,000 | ) |  | $ | 4,902,000 |  |  | $ | 4,872,000 |
Amounts reclassified from accumulated other comprehensive income | 5,000 |  |  | (112,000 | ) |  | (107,000 | )
Income tax (expense) benefit | (2,000 | ) |  | 35,000 |  |  | 33,000 |
Balance at March 31, 2014 | $ | (27,000 | ) |  | $ | 4,825,000 |  |  | $ | 4,798,000 |
2015: |  |  |  |  |
Balance at December 31, 2014 | $ | (16,000 | ) |  | $ | 2,846,000 |  |  | $ | 2,830,000 |
Amounts reclassified from accumulated other comprehensive income | 5,000 |  |  | (82,000 | ) |  | (77,000 | )
Income tax (expense) benefit | (2,000 | ) |  | 25,000 |  |  | 23,000 |
Balance at March 31, 2015 | $ | (13,000 | ) |  | $ | 2,789,000 |  |  | $ | 2,776,000 |
(A) The losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in interest expense on the Consolidated Statements of Income. The tax effect of losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income. (B) The effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in total cost of sales on the Consolidated Statements of Income. These Accumulated Other Comprehensive Income components are included in the computation of net periodic benefit cost (see Note 6 Post Retirement Benefits for additional details). The tax effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income.

X
- Details
Name: | cmt_AccumulatedOtherComprehensiveIncomeAbstract
Namespace Prefix: | cmt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration