XML 54 R45.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note 10 - Financing Arrangements (Details Textual) - USD ($) $ in Millions |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | ---
May 31, 2022 | Sep. 30, 2022 | Sep. 30, 2022
Credit Facility [Member] |  |  |
Long-Term Line of Credit, Total | $ 5.0 |  |
Revolving Credit Facility [Member] | Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 100.0 |  |
Letter of Credit [Member] | Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 15.0 |  |
Swing Line Subfacility [Member] | Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 20.0 |  |
Line of Credit Maturing February 2024 [Member] |  |  |
Letters of Credit Outstanding, Amount | 20.0 |  |
Line of Credit Maturing May 2024 [Member] |  |  |
Letters of Credit Outstanding, Amount | 6.5 |  |
Bank Guarantee [Member] |  |  |
Letters of Credit Outstanding, Amount | 3.0 |  |
Senior Term Loan Facility [Member] |  |  |
Debt Instrument, Face Amount | $ 350.0 |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 4.50 |  |
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio | 1.20 |  |
Debt Issuance Costs, Net, Total |  | $ 12.8 | $ 12.8
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Minimum [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.75% |  |
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Maximum [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |  |
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 2.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |  |
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.75% |  |
Senior Secured Credit Agreement for Periods Ending June 30, 2023 and September 30, 2023 [Member] |  |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 4.00 |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 5.25 |  |
Senior Secured Credit Agreement for Periods Ending December 31, 2023 and After [Member] |  |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 3.50 |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 4.75 |  |
Senior Secured Credit Agreement for Periods Ending June30, September 30, December 31, 2022 and March 31, 2023 [Member] |  |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 5.75 |  |
Subordinated Credit Facility [Member] |  |  |
Debt Instrument, Face Amount | $ 90.0 |  |
Subordinated Credit Facility [Member] | Minimum [Member] |  |  |
Debt Instrument, Prepayment Fee, Percent | 1.00% |  |
Subordinated Credit Facility [Member] | Maximum [Member] |  |  |
Debt Instrument, Prepayment Fee, Percent | 2.00% |  |
Subordinated Credit Facility [Member] | Base Rate [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 8.00% |  |
Subordinated Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 9.10% | 9.10% |
Subordinated Credit Agreement for Periods Ending June30, September 30, December 31, 2022 and March 31, 2023 [Member] |  |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 5.40 |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 6.90 |  |
Subordinated Credit Agreement for Periods Ending June 30, 2023 and September 30, 2023 [Member] |  |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 4.80 |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 6.30 |  |
Subordinated Credit Agreement for Periods Ending December 31, 2023 and After [Member] |  |  |
Debt Instrument, Covenant, Maximum Senior Secured Net Leverage Ratio | 4.20 |  |
Debt Instrument, Covenant, Maximum Total Net Leverage Ratio | 5.70 |  |
Senior Secured Credit Agreement and Subordinated Credit Agreement [Member] |  |  |
Debt Issuance Costs, Net, Total |  | $ 15.2 | $ 15.2
Credit Facility [Member] |  |  |
Debt Issuance Costs, Net, Total |  | $ 2.4 | $ 2.4

X
- Definition Requirement for maximum senior secured net leverage ratio under the debt agreement. + References No definition available. + Details
Name: | grc_DebtInstrumentCovenantMaximumSeniorSecuredNetLeverageRatio
Namespace Prefix: | grc_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Requirement for maximum total net leverage ratio under the debt agreement. + References No definition available. + Details
Name: | grc_DebtInstrumentCovenantMaximumTotalNetLeverageRatio
Namespace Prefix: | grc_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Requirement for minimum fixed charge coverage ratio under the debt agreement + References No definition available. + Details
Name: | grc_DebtInstrumentCovenantMinimumFixedChargeCoverageRatio
Namespace Prefix: | grc_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Prepayment fee as a percentage amount under debt instrument. + References No definition available. + Details
Name: | grc_DebtInstrumentPrepaymentFeePercent
Namespace Prefix: | grc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=grc_CreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=grc_SwingLineSubfacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=grc_LineOfCreditMaturingFebruary2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=grc_LineOfCreditMaturingMay2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=grc_BankGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SeniorTermLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SeniorSecuredCreditAgreementForPeriodsEndingJune302023AndSeptember302023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SeniorSecuredCreditAgreementForPeriodsEndingDecember312023AndAfterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SeniorSecuredCreditAgreementForPeriodsEndingJune30September30December312022AndMarch312023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SubordinatedCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SubordinatedCreditAgreementForPeriodsEndingJune30September30December312022AndMarch312023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SubordinatedCreditAgreementForPeriodsEndingJune302023AndSeptember302023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SubordinatedCreditAgreementForPeriodsEndingDecember312023AndAfterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_SeniorSecuredCreditAgreementAndSubordinatedCreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=grc_CreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |