XML 64 R54.htm IDEA: XBRL DOCUMENT
v3.19.1

Leases - Schedule of Ground, Air Rights, Garage and Office Leases (Details) $ in Thousands | Mar. 31, 2019 USD ($)
--- | ---
Leases [Abstract] |
2019 | $ 2,065
2020 | 2,132
2021 | 2,157
2022 | 2,182
2023 | 2,206
Thereafter | 75,022
Total lease payments | $ 85,764

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

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Lases And Office Lease, Due In Year Two + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLasesAndOfficeLeaseDueInYearTwo
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Leases And Office Lease + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLease
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Leases And Office Lease, After Year Five + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLeaseAfterYearFive
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Leases And Office Lease, Due In Year Five + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLeaseDueInYearFive
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Leases And Office Lease, Due In Year Four + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLeaseDueInYearFour
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage Leases And Office Lease, Due In Year Three + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLeaseDueInYearThree
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, Payments Required Under Ground, Air Rights, Garage leases And Office Lease, Remainder of Fiscal Year + References No definition available. + Details
Name: | wfx_LesseeOperatingLeaseLiabilityPaymentsRequiredUnderGroundAirRightsGarageLeasesAndOfficeLeaseRemainderOfFiscalYear
Namespace Prefix: | wfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant