Debt instrument, redemption price per share.

No definition available.

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Namespace Prefix:	rway_
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Balance Type:	na
Period Type:	instant

- Definition

Debt instrument variable advance rate.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Debt weighted average amount outstanding.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility stated maturity date.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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Balance Type:	na
Period Type:	duration

- Definition

Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of debt redemption features under terms of the debt agreement.

+ References

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+ Details

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Balance Type:	na
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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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+ Details

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

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of interest rate for borrowing under credit facility. Includes, but is not limited to, terms and method for determining interest rate.

+ References

+ Details

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

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
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- Details

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- Details

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- Details

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- Details

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- Details

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Borrowings - Additional Information (Details) - USD ($)					3 Months Ended		9 Months Ended
Borrowings - Additional Information (Details) - USD ($)	Aug. 31, 2022	Jul. 28, 2022	Dec. 10, 2021	May 31, 2019	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Feb. 10, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument principal amount					$ 595,500,000		$ 595,500,000			$ 370,000,000
Aggregate offering costs including underwriter's discounts and commissions					8,955,234		8,955,234			1,511,540
Credit Facility
Debt Instrument [Line Items]
Debt instrument principal amount				$ 100,000,000.0	425,000,000		$ 425,000,000			350,000,000
Expiration date							Apr. 20, 2025
Aggregate offering costs including underwriter's discounts and commissions					4,990,643		$ 4,990,643			1,135,511
Line of credit facility, amortization period							1 year
Line of credit facility stated maturity date							Apr. 20, 2026
Long-Term Debt
Debt Instrument [Line Items]
Debt instrument principal amount			$ 70,000,000
Debt instrument, interest rate stated percentage			4.25%
Debt instrument, description							The 2026 Notes were issued in two closings, the initial issuance of $20 million 2026 Notes closed on December 10, 2021 and the second and final issuance of $50 million 2026 Notes closed on February 10, 2022.
Long-Term Debt \| Debt Instrument Initial Issuance Closed on December 10, 2021
Debt Instrument [Line Items]
Debt instrument principal amount			$ 20,000,000
Long-Term Debt \| Debt Instrument Second and Final Issuance Closed on February 10, 2022
Debt Instrument [Line Items]
Debt instrument principal amount									$ 50,000,000
Maximum \| Credit Facility
Debt Instrument [Line Items]
Debt instrument principal amount					$ 500,000,000.0		$ 500,000,000.0
Variable advance rate				65.00%
Unused commitment fees percentage				1.00%
Maximum \| SOFR \| Credit Facility
Debt Instrument [Line Items]
Applicable margin rate				3.35%
Minimum \| Credit Facility
Debt Instrument [Line Items]
Unused commitment fees percentage				0.25%
Minimum \| SOFR \| Credit Facility
Debt Instrument [Line Items]
Applicable margin rate				2.95%
Weighted Average
Debt Instrument [Line Items]
Weighted average effective interest rate					5.18%	3.50%	4.61%	3.50%
Weighted average outstanding debt balance					$ 126,000,000.0	$ 90,700,000	$ 85,100,000	$ 86,500,000
2026 Notes \| Long-Term Debt
Debt Instrument [Line Items]
Debt instrument, interest rate stated percentage			4.25%
Debt instrument due date			Dec. 10, 2026
Debt instrument, interest rate increase percentage			1.00%
Aggregate offering costs including underwriter's discounts and commissions			$ 900,000
Unamortized deferred financing costs					900,000		$ 900,000			400,000
Line of credit facility, interest rate description							Interest on the 2026 Notes will be due semiannually in arrears on June 10 and December 10 of each year, commencing on June 10, 2022
Debt instrument, frequency of periodic payment							semiannually
July 2027 Notes \| Long-Term Debt
Debt Instrument [Line Items]
Debt instrument principal amount		$ 80,500,000
Debt instrument, interest rate stated percentage		7.50%
Debt instrument due date		Jul. 28, 2027
Aggregate offering costs including underwriter's discounts and commissions					2,600,000		$ 2,600,000
Unamortized deferred financing costs					2,500,000		$ 2,500,000			0.0
Line of credit facility, interest rate description							Interest on the 2027 Notes will be due quarterly in arrears on March 1, June 1, September 1 and December 1 of each year, commencing September 1, 2022
Debt instrument, frequency of periodic payment							quarterly
Debt instrument redemption description							The July 2027 Notes may be redeemed in whole or in part at any time or from time to time at the Company’s option on or after July 28, 2024, at a redemption price of $25 per July 2027 Note plus accrued and unpaid interest payments otherwise payable for the then-current quarterly interest period accrued to the date fixed for redemption
Debt instrument, redemption price per share		$ 25
August 2027 Notes \| Long-Term Debt
Debt Instrument [Line Items]
Debt instrument principal amount	$ 20,000,000
Debt instrument, interest rate stated percentage	7.00%
Debt instrument due date	Aug. 31, 2027
Aggregate offering costs including underwriter's discounts and commissions	$ 600,000
Unamortized deferred financing costs					$ 600,000		$ 600,000			$ 0.0
Line of credit facility, interest rate description							Interest on the August 2027 Notes will be due semiannually in arrears on February 15 and August 15 of each year, commencing on February 15, 2023
Debt instrument, frequency of periodic payment							semiannually