 | us-gaap:OtherCommitmentDueInNextTwelveMonths | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
 | us-gaap:OtherCommitmentDueInSecondAndThirdYearAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
 | us-gaap:OtherCommitmentDueInFourthAndFifthYearAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
 | us-gaap:OtherCommitmentDueAfterFifthYear | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
 | us-gaap:OtherCommitment | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
 | us-gaap:OtherCommitmentDueInNextTwelveMonths | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesOtherCommitmentsTable |
 | us-gaap:OtherCommitmentDueInSecondAndThirdYearAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesOtherCommitmentsTable |
 | us-gaap:OtherCommitmentDueInFourthAndFifthYearAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesOtherCommitmentsTable |
 | us-gaap:OtherCommitmentDueAfterFifthYear | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesOtherCommitmentsTable |
 | us-gaap:OtherCommitment | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesOtherCommitmentsTable |