XML 37 R26.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Nature of Business - Additional Information (Detail) | Jun. 30, 2018 Location Branch
--- | ---
Entity Location [Line Items] |
Number of branches | 340
Net number of branches consolidated | Branch | 2
Alabama [Member] |
Entity Location [Line Items] |
Number of branches | 46
Georgia [Member] |
Entity Location [Line Items] |
Number of branches | 8
New Mexico [Member] |
Entity Location [Line Items] |
Number of branches | 18
North Carolina [Member] |
Entity Location [Line Items] |
Number of branches | 36
Oklahoma [Member] |
Entity Location [Line Items] |
Number of branches | 28
South Carolina [Member] |
Entity Location [Line Items] |
Number of branches | 67
Tennessee [Member] |
Entity Location [Line Items] |
Number of branches | 22
Texas [Member] |
Entity Location [Line Items] |
Number of branches | 98
Virginia [Member] |
Entity Location [Line Items] |
Number of branches | 17

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
Name: | dei_EntityLocationLineItems
Namespace Prefix: | dei_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net number of branches consolidated during the period. + References No definition available. + Details
Name: | rm_NetNumberOfBranchesConsolidated
Namespace Prefix: | rm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_AL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NM
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NC
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_OK
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_SC
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_TN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_TX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_VA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |