XML 18 R39.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Rationalizations Rationalization Text (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2014 metric_tons | Mar. 31, 2013
Restructuring and related severance costs | $ 17,433,000 |
Estimated Reduction in Capacity | 60,000 |
Restructuring and Related Cost, Incurred Cost | 86,000 | 0
Restructuring and Related Cost, Expected Cost | 95,000,000 |
Restructuring and Related Cost, Expected Number of Positions Eliminated | 600 |
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent |  | 20.00%
Restructuring and related - expected cash outlays | 25,000,000 |
Expected Rationalization Charges For Following Year | 70,000,000 |
Other Rationalization Charges in Cost of Sales | 321,000 |
Engineered Solutions [Member] |  |
Restructuring and related severance costs | 413,000 |
Restructuring and Related Cost, Expected Cost | 4,500,000 |
Restructuring and Related Cost, Expected Number of Positions Eliminated | 40 |
Restructuring and related - expected cash outlays | 1,000,000 |
Expected Rationalization Charges For Following Year | 3,500,000 |
Other Rationalization Charges in Cost of Sales | 0 |
Industrial Materials [Member] |  |
Restructuring and related severance and contract termination costs | 100,000 |
Restructuring Reserve, Accelerated Depreciation | 17,020,000 |
Other Rationalization Charges in Cost of Sales | $ 321,000 |

X
- Definition Estimated Reduction in Capacity + References No definition available. + Details
Name: | gti_EstimatedReductioninCapacity
Namespace Prefix: | gti_
Data Type: | num:weightItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of rationailzation charges the company expects to incur in the next fiscal year. + References No definition available. + Details
Name: | gti_ExpectedRationalizationChargesForFollowingYear
Namespace Prefix: | gti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other Rationalization Charges in Cost of Sales + References No definition available. + Details
Name: | gti_OtherRationalizationChargesinCostofSales
Namespace Prefix: | gti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of rationalization charges expected to be settled in cash + References No definition available. + Details
Name: | gti_Restructuringandrelatedexpectedcashoutlays
Namespace Prefix: | gti_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Restructuring and related severance and contract termination costs + References No definition available. + Details
Name: | gti_Restructuringandrelatedseveranceandcontractterminationcosts
Namespace Prefix: | gti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringAndRelatedCostExpectedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The expected number of positions to be eliminated as a result of restructuring activities. + References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
Name: | us-gaap_RestructuringAndRelatedCostIncurredCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). + References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_RestructuringCostsAndAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of accelerated depreciation charged against earnings associated with exit from or disposal of business activities or restructuring plan. + References No definition available. + Details
Name: | us-gaap_RestructuringReserveAcceleratedDepreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration