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DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Quantitative Information About IRLCs and Fair Value Measurements (Details) - Interest Rate Lock Commitments | Mar. 31, 2024 | Dec. 31, 2023
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Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loan funding probability (“pull-through”) | 0.00% | 0.00%
Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loan funding probability (“pull-through”) | 100.00% | 100.00%
Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loan funding probability (“pull-through”) | 88.00% | 86.50%

X
- Definition Value of input used to measure investment in interest rate lock commitment measured at fair value. + References No definition available. + Details
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Namespace Prefix: | ghld_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |