XML 35 R44.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Jun. 30, 2014
Debt Instrument [Line Items]          
Short term borrowings $ 37.0us-gaap_ShortTermBorrowings   $ 37.0us-gaap_ShortTermBorrowings   $ 0us-gaap_ShortTermBorrowings
Total 607.1us-gaap_LongTermDebt   607.1us-gaap_LongTermDebt   604.3us-gaap_LongTermDebt
Less: amounts due within one year 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths   0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths   0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
Long-term debt, net of current portion 607.1us-gaap_LongTermDebtNoncurrent   607.1us-gaap_LongTermDebtNoncurrent   604.3us-gaap_LongTermDebtNoncurrent
Interest costs 7.5us-gaap_InterestCostsIncurred 8.2us-gaap_InterestCostsIncurred 15.1us-gaap_InterestCostsIncurred 16.1us-gaap_InterestCostsIncurred  
Interest costs, capitalized 0.7us-gaap_InterestCostsCapitalized 4.5us-gaap_InterestCostsCapitalized 1.3us-gaap_InterestCostsCapitalized 7.9us-gaap_InterestCostsCapitalized  
4.45% Senior Unsecured Notes due 2023          
Debt Instrument [Line Items]          
Face amount 300.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member		   300.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member		   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		   4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member		   4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member
Total 299.6us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member		   299.6us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member		   299.6us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes4.45PercentDueMarch2023Member
Credit Agreement          
Debt Instrument [Line Items]          
Maximum borrowing capacity 500.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		   500.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		    
Letters of credit issued 8.2us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		   8.2us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		    
Credit Agreement available for future borrowings 454.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		   454.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember		    
Credit Agreement | LIBOR          
Debt Instrument [Line Items]          
Variable rate basis     LIBOR    
Interest rate margin (as a percent)     1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		    
Credit Agreement | LIBOR | Minimum          
Debt Instrument [Line Items]          
Interest rate margin (as a percent)     0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		    
Credit Agreement | LIBOR | Maximum          
Debt Instrument [Line Items]          
Interest rate margin (as a percent)     1.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		    
Credit Agreement | Base Rate          
Debt Instrument [Line Items]          
Variable rate basis     Base Rate    
Interest rate margin (as a percent)     0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember		    
Credit Agreement | Base Rate | Minimum          
Debt Instrument [Line Items]          
Interest rate margin (as a percent)     0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember		    
Credit Agreement | Base Rate | Maximum          
Debt Instrument [Line Items]          
Interest rate margin (as a percent)     0.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember		    
Letters of credit          
Debt Instrument [Line Items]          
Commitment fee rate (as a percent)     0.15%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember		    
Letter of credit fees (as a percent)     1.25%crs_LetterOfCreditFeesPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember		    
Required interest coverage ratio     3.50crs_InterestCoverageRatio
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember		    
Letters of credit | Minimum          
Debt Instrument [Line Items]          
Commitment fee rate (as a percent)     0.075%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Letter of credit fees (as a percent)     0.75%crs_LetterOfCreditFeesPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Letters of credit | Maximum          
Debt Instrument [Line Items]          
Commitment fee rate (as a percent)     0.375%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Letter of credit fees (as a percent)     1.90%crs_LetterOfCreditFeesPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Required debt to capital ratio (less than 55%) 0.55us-gaap_RatioOfIndebtednessToNetCapital1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		   0.55us-gaap_RatioOfIndebtednessToNetCapital1
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Senior unsecured notes, 5.20% due July 2021          
Debt Instrument [Line Items]          
Face amount 250.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member		   250.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member		   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		   5.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member		   5.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member
Total 252.5us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member		   252.5us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_SeniorUnsecuredNotes5.20PercentDueJuly2021Member		   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          
Debt Instrument [Line Items]          
Face amount 55.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member		   55.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member		   55.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
Total $ 55.0us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member		   $ 55.0us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member		   $ 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          
Debt Instrument [Line Items]          
Interest rate (as a percent) 6.97%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		   6.97%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		   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          
Debt Instrument [Line Items]          
Interest rate (as a percent) 7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		   7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		   7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= crs_MediumTermNotesSeriesB6.97PercentTo7.10PercentDueApril2018ToMay2018Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember