XML 33 R22.htm IDEA: XBRL DOCUMENT
v3.19.1

Business and Organization (Details) | 3 Months Ended
--- | ---
Mar. 31, 2019
Installation of systems in newly constructed facilities |
Business and Organization |
Percentage of revenue attributable to services | 41.60%
Maintenance, repair and replacement services |
Business and Organization |
Percentage of revenue attributable to services | 58.40%

X
- Definition The percentage of net services revenue to total net revenue from the services rendered as of the year end. + References No definition available. + Details
Name: | fix_SalesRevenueServicesNetPercentage
Namespace Prefix: | fix_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | fix_ScheduleOfBusinessAndOrganizationLineItems
Namespace Prefix: | fix_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=fix_SystemInstallationInNewlyConstructedFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=fix_MaintenanceRepairAndReplacementServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |