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COMMITMENTS AND CONTINGENCIES - Schedule of Activity of Investor Reserves (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Investor Reserves [Roll Forward] |  |
Balance — beginning of period | $ 19,973 | $ 16,094
Provision for investor reserves | 520 | 1,902
Realized losses, net | (2,215) | (1,325)
Balance — end of period | $ 18,278 | $ 16,671

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- Definition Reserves for losses related to mortgage loan repurchases. + References No definition available. + Details
Name: | ghld_InvestorReserves
Namespace Prefix: | ghld_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Investor Reserves + References No definition available. + Details
Name: | ghld_InvestorReservesRollForward
Namespace Prefix: | ghld_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Provision for investor reserves. + References No definition available. + Details
Name: | ghld_ProvisionForInvestorReserves
Namespace Prefix: | ghld_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Realized Losses, Net + References No definition available. + Details
Name: | ghld_RealizedLossesNet
Namespace Prefix: | ghld_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration