| Line | Label | Object Class | Period Type | Balance | Name |
| 1 | Leasehold Land and Buildings | [Network] | http://www.xbrlsite.com/DigitalFinancialReporting/BusinessUseCase/MultiplePeriodsCompoundFact/LeaseHoldLandAndBuildings | ||
| 2 | Leasehold Land and Buildings [Table] | [Table] | pattern:LeaseholdLandBuildingsTable | ||
| 3 | Legal Entity [Axis] | [Axis] | frm:LegalEntityAxis | ||
| 4 | Consolidated Entity [Member] | [Member] | frm:ConsolidatedEntityMember | ||
| 5 | Leasehold Land and Building, Identifier [Axis] | [Axis] | pattern:LeaseholdLandBuildingIdentifierAxis | ||
| 6 | Leaseholds, All [Member] | [Member] | pattern:LeaseholdsAllMember | ||
| 7 | Tacoma Warehouse Under 15 Year Lease [Member] | [Member] | pattern:TacomaWarehouseUnder15YearLeaseMember | ||
| 8 | Seattle Warehouse Under 20 Year Lease [Member] | [Member] | pattern:SeattleWarehouseUnder20YearLeaseMember | ||
| 9 | State [Axis] | [Axis] | pattern:StateAxis | ||
| 10 | States, All [Member] | [Member] | pattern:StatesAllMember | ||
| 11 | Washington [Member] | [Member] | pattern:WashingtonMember | ||
| 12 | Oregon [Member] | [Member] | pattern:OregonMember | ||
| 13 | California [Member] | [Member] | pattern:CaliforniaMember | ||
| 14 | Leasehold Land and Building [Line Items] | [Line Items] | pattern:LeaseholdLandBuildingLineItems | ||
| 15 | Leasehold Land and Building [Hierarchy] | [Abstract] | pattern:LeaseholdLandBuildingHierarchy | ||
| 16 | Leasehold Land and Buildings, Location | [Concept] Text/String | For Period | pattern:LeaseholdLandAndBuildingsLocation | |
| 17 | Leasehold Land and Buildings, Description of Facility | [Concept] Text/String | For Period | pattern:LeaseholdLandAndBuildingsDescriptionOfFacility | |
| 18 | Leasehold Land and Buildings, Tenure | [Concept] Text/String | For Period | pattern:LeaseholdLandAndBuildingsTenure | |
| 19 | Leasehold Land and Buildings, Tenure Start Date | [Concept] Date | For Period | pattern:LeaseholdLandAndBuildingsTenureStartDate | |
| 20 | Leasehold Land and Buildings, Land Area | [Concept] Decimal | As Of | pattern:LeaseholdLandAndBuildingsLandArea | |
| 21 | Leasehold Land and Buildings, Value at Cost | [Concept] Monetary | As Of | pattern:LeaseholdLandAndBuildingsValueAtCost |