XML 47 R36.htm IDEA: XBRL DOCUMENT
v3.21.2

LEASES: (Tables) | 9 Months Ended
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Sep. 30, 2021
LEASES: |
Schedule of other information of leases | ​
​ | ​ | ​ | ​
Weighted average remaining lease term – finance lease (months) |  | 11 | months
Weighted average discount rate – finance lease |  | 1.682 | %

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- Definition Tabular disclosure of aging analysis for financing receivable. + References No definition available. + Details
Name: | res_ScheduleOfOtherInformationOfLeasesTableTextBlock
Namespace Prefix: | res_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration