Contract, Renewal Term

No definition available.

Name:	dhcp_ContractRenewalTerm
Namespace Prefix:	dhcp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of subservicing accounts transferred / completed

+ References

No definition available.

+ Details

Name:	dhcp_Numberofsubservicingaccountstransferred
Namespace Prefix:	dhcp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage Of Net Sale Proceeds Of Nonordinary Course Asset Sales and Disposition Of Bulk Mortgage Servicing Rights Required As Prepayment In Term Loans

+ References

No definition available.

+ Details

Name:	dhcp_PercentageOfNetSaleProceedsOfNonordinaryCourseAssetSalesandDispositionOfBulkMortgageServicingRightsRequiredAsPrepaymentInTermLoans
Namespace Prefix:	dhcp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Unpaid principal balance of mortgage loans related to mortgage servicing rights that were sold.

+ References

No definition available.

+ Details

Name:	dhcp_PrincipalAmountOfLoansRelatedToMortgageServicingRightsSold
Namespace Prefix:	dhcp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

[Line Items] for Transactions with NRM [Table]

+ References

No definition available.

+ Details

Name:	dhcp_TransactionswithNRMLineItems
Namespace Prefix:	dhcp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 910
-SubTopic 310
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68065756&loc=d3e49370-109356

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(c)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_ContractReceivableRetainage
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfMortgageLoans
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash inflow from the collection of receivables classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromCollectionOfOtherReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the sale of servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7524895&loc=d3e120260-111741

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfMortgageServicingRightsMSR
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_MajorCustomersAxis=dhcp_NewResidentialInvestmentCorp.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContractWithCustomerSalesChannelAxis=dhcp_BulkSalesTransactionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MajorCustomersAxis=dhcp_NewPennFinancialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContractWithCustomerSalesChannelAxis=dhcp_CoIssueSalesTransactionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContractWithCustomerSalesChannelAxis=dhcp_FlowSalesTransactionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContractWithCustomerSalesChannelAxis=dhcp_RecaptureActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TransactionTypeAxis=dhcp_SubservicingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Transactions with NRM - Additional Information (Details) $ in Thousands				1 Months Ended	11 Months Ended	12 Months Ended		27 Months Ended
	Jun. 28, 2018 USD ($)	Jan. 17, 2018 USD ($)	Aug. 08, 2017	Feb. 09, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)	Apr. 01, 2019 Account
Transactions with NRM [Line Items]
Proceeds from sales of servicing rights				$ 94,994	$ 207,478		$ 137,301
Servicing rights holdback receivable					14,050	$ 14,050	31,336	$ 14,050
Revenues generated from transfers				27,963	161,710		284,391
NRM [Member]
Transactions with NRM [Line Items]
Proceeds from servicing rights holdback receivable						34,500
Servicing rights holdback receivable					10,800	$ 10,800	31,300	10,800
Revenues generated from transfers				3,800	44,100		61,800
Bulk Sales [Member] \| NRM [Member]
Transactions with NRM [Line Items]
Principal amount of loans related to mortgage servicing rights sold		$ 11,300,000						75,800,000
Proceeds from sales of servicing rights		$ 90,400						$ 397,100
Percentage of cash proceeds used to repay borrowings		80.00%
Bulk Sales [Member] \| New Penn Financial [Member]
Transactions with NRM [Line Items]
Principal amount of loans related to mortgage servicing rights sold	$ 4,700,000
Proceeds from sales of servicing rights	$ 56,700
Co-Issue Sales [Member] \| NRM [Member]
Transactions with NRM [Line Items]
Principal amount of loans related to mortgage servicing rights sold				469,500	3,600,000		6,400,000
Flow Sales [Member] \| NRM [Member]
Transactions with NRM [Line Items]
Principal amount of loans related to mortgage servicing rights sold							$ 7,600,000
Recapture Activities [Member]
Transactions with NRM [Line Items]
Principal amount of loans related to mortgage servicing rights sold				$ 236,900	$ 1,600,000
Subservicing Agreement [Member] \| NRM [Member]
Transactions with NRM [Line Items]
Renewal term			1 year
Subsequent Event [Member]
Transactions with NRM [Line Items]
Number of subservicing accounts transferred \| Account									208,000