Debt (Details) (USD $) In Millions, unless otherwise specified
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3 Months Ended |
9 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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Mar. 31, 2015
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Mar. 31, 2014
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Jun. 30, 2014
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Debt Instrument [Line Items] |
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Total |
$ 609.8us-gaap_LongTermDebt |
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$ 609.8us-gaap_LongTermDebt |
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$ 604.3us-gaap_LongTermDebt |
Less: amounts due within one year |
0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
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0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
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0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
Long-term debt, net of current portion |
609.8us-gaap_LongTermDebtNoncurrent |
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609.8us-gaap_LongTermDebtNoncurrent |
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604.3us-gaap_LongTermDebtNoncurrent |
Interest costs |
7.7us-gaap_InterestCostsIncurred |
8.1us-gaap_InterestCostsIncurred |
22.9us-gaap_InterestCostsIncurred |
24.1us-gaap_InterestCostsIncurred |
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Interest costs, capitalized |
0.6us-gaap_InterestCostsCapitalized |
5.4us-gaap_InterestCostsCapitalized |
2.0us-gaap_InterestCostsCapitalized |
13.3us-gaap_InterestCostsCapitalized |
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4.45% Senior Unsecured Notes due 2023 |
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Debt Instrument [Line Items] |
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Face amount |
300.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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300.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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300.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
Interest rate (as a percent) |
4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
Total |
299.6us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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299.6us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
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299.6us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member |
Credit Agreement |
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Debt Instrument [Line Items] |
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Maximum borrowing capacity |
500.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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500.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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Letters of credit issued |
8.2us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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8.2us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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Credit Agreement available for future borrowings |
491.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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491.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember |
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Credit Agreement | LIBOR |
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Debt Instrument [Line Items] |
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Variable rate basis |
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LIBOR |
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Interest rate margin (as a percent) |
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1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
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Credit Agreement | LIBOR | Minimum |
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Debt Instrument [Line Items] |
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Interest rate margin (as a percent) |
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0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
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Credit Agreement | LIBOR | Maximum |
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Debt Instrument [Line Items] |
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Interest rate margin (as a percent) |
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1.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
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Credit Agreement | Base Rate |
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Debt Instrument [Line Items] |
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Variable rate basis |
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Base Rate |
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Interest rate margin (as a percent) |
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0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |
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Credit Agreement | Base Rate | Minimum |
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Debt Instrument [Line Items] |
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Interest rate margin (as a percent) |
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0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |
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Credit Agreement | Base Rate | Maximum |
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Debt Instrument [Line Items] |
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Interest rate margin (as a percent) |
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0.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_BaseRateMember |
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Letters of credit |
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Debt Instrument [Line Items] |
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Commitment fee rate (as a percent) |
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0.15%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember |
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Letter of credit fees (as a percent) |
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1.25%crs_LetterOfCreditFeesPercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember |
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Required interest coverage ratio |
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3.50crs_InterestCoverageRatio / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember |
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Letters of credit | Minimum |
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Debt Instrument [Line Items] |
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Commitment fee rate (as a percent) |
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0.075%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Letter of credit fees (as a percent) |
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0.75%crs_LetterOfCreditFeesPercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Letters of credit | Maximum |
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Debt Instrument [Line Items] |
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Commitment fee rate (as a percent) |
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0.375%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Letter of credit fees (as a percent) |
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1.90%crs_LetterOfCreditFeesPercentage / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Required debt to capital ratio (less than 55%) |
0.55us-gaap_RatioOfIndebtednessToNetCapital1 / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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0.55us-gaap_RatioOfIndebtednessToNetCapital1 / us-gaap_DebtInstrumentAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Senior unsecured notes, 5.20% due July 2021 |
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Debt Instrument [Line Items] |
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Face amount |
250.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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250.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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250.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
Interest rate (as a percent) |
5.20%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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5.20%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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5.20%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
Total |
255.2us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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255.2us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
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249.7us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member |
Medium-term notes, Series B 6.97% to 7.10% due April 2018 To May 2018 Member |
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Debt Instrument [Line Items] |
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Face amount |
55.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
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55.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
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55.0us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
Total |
$ 55.0us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
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$ 55.0us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
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$ 55.0us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member |
Medium-term notes, Series B 6.97% to 7.10% due April 2018 To May 2018 Member | Minimum |
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Debt Instrument [Line Items] |
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Interest rate (as a percent) |
6.97%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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6.97%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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6.97%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
Medium-term notes, Series B 6.97% to 7.10% due April 2018 To May 2018 Member | Maximum |
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Debt Instrument [Line Items] |
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Interest rate (as a percent) |
7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MaximumMember |
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7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MaximumMember |
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7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member / us-gaap_RangeAxis = us-gaap_MaximumMember |