Amount of debtor-in-possession financing arranged available for immediate borrowing under the credit facility.

No definition available.

Name:	rely_DebtorInPossessionFinancingAmountArrangedAvailableBorrowingCapacity
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Incremental interest rate on outstanding borrowings under debtor-in-possession financing arrangement during the continuance of an event of default.

+ References

No definition available.

+ Details

Name:	rely_DebtorInPossessionFinancingIncrementalInterestRateOnBorrowingsOutstandingDuringContinuanceOfEventOfDefault
Namespace Prefix:	rely_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of break-up fee due in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationBreakUpFee
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The percentage of outstanding stock due as a break-up fee in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationBreakUpFeeStockOwnershipPercentage
Namespace Prefix:	rely_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Cash payment to be received under terms of the reorganization plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationCashPayment
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate equity commitment cost for purchase of common stock inclusive of the repayment of the RELY DIP and arrangement of an on-going credit facility.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationEquityCommitmentCost
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The ownership percentage on emergence from bankruptcy proceedings under the reorganization plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationOwnershipPercentageOnEmergenceFromBankruptcy
Namespace Prefix:	rely_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The ownership percentage on emergence from bankruptcy proceedings under the reorganization plan if common stockholders vote to approve the plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationOwnershipPercentageOnEmergenceFromBankruptcyStockholdersApprovalOfPlan
Namespace Prefix:	rely_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The ownership percentage on emergence from bankruptcy proceedings under the reorganization plan if common stockholders do not vote to approve the plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationOwnershipPercentageOnEmergenceFromBankruptcyStockholdersDoNotApprovePlan
Namespace Prefix:	rely_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of accrued dividends due settled in full as part of the reorganization plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationSettlementOfAccruedDividends
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of liquidation preference settled in full as part of the reorganization plan.

+ References

No definition available.

+ Details

Name:	rely_PlanOfReorganizationSettlementOfLiquidationPreference
Namespace Prefix:	rely_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_DebtorInPossessionFinancingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount debtor-in-possession financing arranged (but not necessarily all borrowed).

+ References

No definition available.

+ Details

Name:	us-gaap_DebtorInPossessionFinancingAmountArranged
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest rate on outstanding borrowings under debtor-in-possession financing arrangement.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtorInPossessionFinancingInterestRateOnBorrowingsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_ReorganizationsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_TypeOfArrangementAxis=rely_RealIndustryDebtorInPossessionCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=rely_PlanOfReorganizationSponsorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=rely_PlanOfReorganizationMember
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:

- Details

Name:	dei_LegalEntityAxis=rely_RealIndustryDebtorInPossessionLendersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=rely_RedeemablePreferredStockholderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=rely_CommonStockholdersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OwnershipAxis=rely_ReorganizedRealIndustryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=rely_RealIndustryDebtorInPossessionFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events - Real Industry Bankruptcy (Detail) - USD ($) $ in Millions			12 Months Ended
	Mar. 01, 2018	Jan. 24, 2018	Dec. 31, 2017	Jan. 31, 2018	Jan. 19, 2018
RELY DIP Credit Agreement
Reorganization
Break-up fee due in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent		$ 0.3
Percentage of outstanding stock due as a break-up fee in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent		4.90%
Plan Sponsor \| RI Plan
Reorganization
Aggregate equity commitment cost	$ 17.5
Plan Sponsor \| RI Plan \| Subsequent Event
Reorganization
Aggregate equity commitment cost	17.5
RELY DIP Lenders \| RELY DIP Credit Agreement
Reorganization
Aggregate equity commitment cost		$ 17.5
RELY DIP Lenders \| RELY DIP Credit Agreement \| Subsequent Event
Reorganization
Aggregate equity commitment cost		17.5
Break-up fee due in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent		$ 0.3
Percentage of outstanding stock due as a break-up fee in the event the Company terminates the Equity Commitment without RELY DIP Lenders consent		4.90%
Redeemable Preferred Stockholder \| RI Plan
Reorganization
Cash payment to be received	2.0
Liquidation preference settled in full	28.5
Accrued dividends due settled in full	1.8
Redeemable Preferred Stockholder \| RI Plan \| Subsequent Event
Reorganization
Cash payment to be received	2.0
Liquidation preference settled in full	28.5
Accrued dividends due settled in full	1.8
Common Stockholders \| RI Plan
Reorganization
Cash payment to be received	$ 2.0
Reorganized RELY \| Plan Sponsor \| RI Plan
Reorganization
Ownership percentage on emergence from bankruptcy proceedings	49.00%		49.00%
Reorganized RELY \| Plan Sponsor \| RI Plan \| Subsequent Event
Reorganization
Ownership percentage on emergence from bankruptcy proceedings	49.00%
Reorganized RELY \| RELY DIP Lenders \| RELY DIP Credit Agreement \| Maximum
Reorganization
Ownership percentage on emergence from bankruptcy proceedings		49.00%
Reorganized RELY \| RELY DIP Lenders \| RELY DIP Credit Agreement \| Subsequent Event \| Maximum
Reorganization
Ownership percentage on emergence from bankruptcy proceedings		49.00%
Reorganized RELY \| Redeemable Preferred Stockholder \| RI Plan
Reorganization
Ownership percentage on emergence from bankruptcy proceedings if common stockholders vote to approve the RI Plan	31.00%		31.00%
Ownership percentage on emergence from bankruptcy proceedings if common stockholders do not vote to approve the RI Plan	35.00%		35.00%
Reorganized RELY \| Redeemable Preferred Stockholder \| RI Plan \| Subsequent Event
Reorganization
Ownership percentage on emergence from bankruptcy proceedings if common stockholders vote to approve the RI Plan	31.00%
Ownership percentage on emergence from bankruptcy proceedings if common stockholders do not vote to approve the RI Plan	35.00%
Reorganized RELY \| Common Stockholders \| RI Plan
Reorganization
Ownership percentage on emergence from bankruptcy proceedings if common stockholders vote to approve the RI Plan	20.00%		20.00%
Ownership percentage on emergence from bankruptcy proceedings if common stockholders do not vote to approve the RI Plan	16.00%		16.00%
Reorganized RELY \| Common Stockholders \| RI Plan \| Subsequent Event
Reorganization
Ownership percentage on emergence from bankruptcy proceedings if common stockholders vote to approve the RI Plan	20.00%
Ownership percentage on emergence from bankruptcy proceedings if common stockholders do not vote to approve the RI Plan	16.00%
RELY DIP Facility
Debtor-in-Possession Financing
DIP financing arranged		$ 5.5			$ 5.5
DIP financing available for immediate borrowing		$ 4.0		$ 1.5
Stated interest rate		11.00%
Incremental interest rate during the continuance of an event of default		2.00%
RELY DIP Facility \| Subsequent Event
Debtor-in-Possession Financing
DIP financing arranged		$ 5.5
DIP financing available for immediate borrowing		$ 4.0		$ 1.5
Stated interest rate		11.00%
Incremental interest rate during the continuance of an event of default		2.00%