XML 40 R21.htm IDEA: XBRL DOCUMENT v3.2.0.727

Business and Organization (Details)	6 Months Ended
	Jun. 30, 2015
Installation of systems in newly constructed facilities
Business and Organization
Percentage of revenue attributable to services	48.00%
Maintenance, repair and replacement services
Business and Organization
Percentage of revenue attributable to services	52.00%
HVAC
Business and Organization
Percentage of revenue attributable to services	77.00%
Plumbing
Business and Organization
Percentage of revenue attributable to services	15.00%
Building automation control systems
Business and Organization
Percentage of revenue attributable to services	5.00%
Other
Business and Organization
Percentage of revenue attributable to services	3.00%

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:	us-gaap_ProductOrServiceAxis=fix_SystemInstallationInNewlyConstructedFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=fix_MaintenanceRepairAndReplacementServiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=fix_HeatingVentilationAndAirConditioningMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=fix_PlumbingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=fix_BuildingAutomationControlSystemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=fix_OtherServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: