XML 33 R52.htm IDEA: XBRL DOCUMENT v2.4.1.9
INDEBTEDNESS (Schedule of Credit Agreement) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Total borrowed 110,500us-gaap_LongTermDebt  
Credit Agreement [Member]    
Debt Instrument [Line Items]    
Total borrowed 110,500us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
119,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
Term Facility [Member] | Credit Agreement [Member]    
Debt Instrument [Line Items]    
Total borrowed 47,500us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= dhx_TermFacilityMember
50,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= dhx_TermFacilityMember
Maximum available to be borrowed under revolving facility 50,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= dhx_TermFacilityMember
 
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Maximum available to be borrowed under revolving facility 137,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
131,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
Revolving Credit Facility [Member] | Credit Agreement [Member]    
Debt Instrument [Line Items]    
Total borrowed 63,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
69,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
Maximum available to be borrowed under revolving facility 200,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
 
LIBOR [Member] | Credit Agreement [Member]    
Debt Instrument [Line Items]    
Interest margin 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ dhx_ReferenceRateAxis
= dhx_LiborMember
2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ dhx_ReferenceRateAxis
= dhx_LiborMember
Actual interest rates 2.19%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ dhx_ReferenceRateAxis
= dhx_LiborMember
2.19%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= dhx_CreditAgreementMember
/ dhx_ReferenceRateAxis
= dhx_LiborMember