Related Party Transactions	12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions We have engaged in certain transactions with other companies related to us by common ownership. We have entered into various operating leases to lease facilities from these affiliated companies. The majority of these lease obligations expire in 2018 and, at our discretion, may be extended for an additional 36 months subject to agreement on pricing of the extension. These leases may be extended or allowed to expire by us depending on operational needs, market prices and the ability for us to negotiate and secure, at our discretion, alternative leases or replacement locations. Rent expense associated with our related party leases was $6.9 million, $8.0 million and $7.6 million for the years ended December 31, 2017, 2016 and 2015, respectively. In certain cases, we have made improvements to properties subject to related party leases referenced above, including the construction of buildings. As of December 31, 2017, the net book value associated with buildings we constructed on properties subject to related party leases was $59.6 million. We are depreciating the costs associated with these buildings over their estimated remaining useful lives of approximately 38 years, which exceeds the remaining lease terms that primarily expire in 2018. Upon expiration of the leases, leasehold improvements could be construed as becoming the property of the related party lessors. As of December 31, 2017, the net book value associated with other leasehold and land improvements we constructed on properties subject to related party leases was $17.8 million, a portion of which is in construction in progress. We are depreciating the costs associated with these leasehold and land improvements over their estimated remaining lives of approximately 12 years, which exceeds the remaining lease terms that primarily expire in 2018. It is our intent to extend, renew, or replace the related party property leases such that we have unrestricted use of the buildings and improvements throughout their estimated useful lives. Extension, renewal or replacement of the related party property leases is dependent on negotiations with related parties, the failure of which could result in material disputes with the related parties. In the event we do not extend, renew, or replace these related party property leases, we will revise the remaining estimated useful lives of the buildings and other improvements accordingly. We were a party to certain agreements relating to the rental of aircraft to Western Airways ("WA"), an entity owned by the Mosing family. The WA agreements reflected both dry lease and wet lease rental, whereby we were charged a flat monthly fee primarily for crew, hangar, maintenance and administration costs in addition to other variable costs for fuel and maintenance. We also earned charter income from third party usage through a revenue sharing agreement. We recorded net charter expense of $1.1 million, $1.3 million and $2.0 million for the years ended December 31, 2017, 2016 and 2015, respectively. In August 2017, we paid WA a $0.2 million commission for brokering the sale of a plane. In December 2017, we sold a plane to Mosing Aviation, LLC, an entity owned by the Mosing family, for $0.7 million. The rental agreements were terminated with WA effective December 29, 2017 upon the sale of our last aircraft. Tax Receivable Agreement Mosing Holdings and its permitted transferees converted all of their Preferred Stock into shares of our common stock on a one-for-one basis on August 26, 2016, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications and other similar transactions, by delivery of an equivalent portion of their interests in FICV to us (the “Conversion”). FICV made an election under Section 754 of the Internal Revenue Code. Pursuant to the Section 754 election, the Conversion resulted in an adjustment to the tax basis of the tangible and intangible assets of FICV with respect to the portion of FICV now held by FINV. These adjustments are allocated to FINV. The adjustments to the tax basis of the tangible and intangible assets of FICV described above would not have been available absent this Conversion. The basis adjustments may reduce the amount of tax that FINV would otherwise be required to pay in the future. These basis adjustments may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets. The TRA that we entered into with FICV and Mosing Holdings in connection with our initial public offering ("IPO") generally provides for the payment by FINV of 85% of the amount of the actual reductions, if any, in payments of U.S. federal, state and local income tax or franchise tax (which reductions we refer to as “cash savings”) in periods after our IPO as a result of (i) the tax basis increases resulting from the Conversion and (ii) imputed interest deemed to be paid by us as a result of, and additional tax basis arising from, payments under the TRA. In addition, the TRA provides for payment by us of interest earned from the due date (without extensions) of the corresponding tax return to the date of payment specified by the TRA. The payments under the TRA will not be conditioned upon a holder of rights under the TRA having a continued ownership interest in either FICV or FINV. We will retain the remaining 15% of cash savings, if any. The estimation of the liability under the TRA is by its nature imprecise and subject to significant assumptions regarding the amount and timing of future taxable income. As of December 31, 2016, our estimated TRA liability was $124.6 million, which was included in other non-current liabilities on our consolidated balance sheet. As of December 31, 2017, FINV has a cumulative loss over the prior 36 month period. Based on this history of losses, as well as uncertainty regarding the timing and amount of future taxable income, we are no longer able to conclude that there will be future cash savings that will lead to additional payouts under the TRA beyond the estimated $2.1 million as of December 31, 2017. Additional TRA liability may be recognized in the future based on changes in expectations regarding the timing and likelihood of future cash savings. The payment obligations under the TRA are our obligations and are not obligations of FICV. The term of the TRA will continue until all such tax benefits have been utilized or expired, unless FINV elects to exercise its sole right to terminate the TRA early. If FINV elects to terminate the TRA early, which it may do so in its sole discretion, it would be required to make an immediate payment equal to the present value of the anticipated future tax benefits subject to the TRA (based upon certain assumptions and deemed events set forth in the TRA, including the assumption that it has sufficient taxable income to fully utilize such benefits and that any FICV interests that Mosing Holdings or its transferees own on the termination date are deemed to be exchanged on the termination date). Any early termination payment may be made significantly in advance of the actual realization, if any, of such future benefits. In addition, payments due under the TRA will be similarly accelerated following certain mergers or other changes of control. In these situations, FINV’s obligations under the TRA could have a substantial negative impact on our liquidity and could have the effect of delaying, deferring or preventing certain mergers, asset sales, other forms of business combinations or other changes of control. For example, if the TRA were terminated on December 31, 2017, the estimated termination payment would be approximately $60.7 million (calculated using a discount rate of 5.58%). The foregoing number is merely an estimate and the actual payment could differ materially. Because FINV is a holding company with no operations of its own, its ability to make payments under the TRA is dependent on the ability of FICV to make distributions to it in an amount sufficient to cover FINV’s obligations under such agreements; this ability, in turn, may depend on the ability of FICV’s subsidiaries to provide payments to it. The ability of FICV and its subsidiaries to make such distributions will be subject to, among other things, the applicable provisions of Dutch law that may limit the amount of funds available for distribution and restrictions in our debt instruments. To the extent that FINV is unable to make payments under the TRA for any reason, except in the case of an acceleration of payments thereunder occurring in connection with an early termination of the TRA or certain mergers or change of control, such payments will be deferred and will accrue interest until paid, and FINV will be prohibited from paying dividends on its common stock.

Related Party Transactions

We have engaged in certain transactions with other companies related to us by common ownership. We have entered into various operating leases to lease facilities from these affiliated companies. The majority of these lease obligations expire in 2018 and, at our discretion, may be extended for an additional 36 months subject to agreement on pricing of the extension. These leases may be extended or allowed to expire by us depending on operational needs, market prices and the ability for us to negotiate and secure, at our discretion, alternative leases or replacement locations. Rent expense associated with our related party leases was $6.9 million, $8.0 million and $7.6 million for the years ended December 31, 2017, 2016 and 2015, respectively.

In certain cases, we have made improvements to properties subject to related party leases referenced above, including the construction of buildings. As of December 31, 2017, the net book value associated with buildings we constructed on properties subject to related party leases was $59.6 million. We are depreciating the costs associated with these buildings over their estimated remaining useful lives of approximately 38 years, which exceeds the remaining lease terms that primarily expire in 2018. Upon expiration of the leases, leasehold improvements could be construed as becoming the property of the related party lessors. As of December 31, 2017, the net book value associated with other leasehold and land improvements we constructed on properties subject to related party leases was $17.8 million, a portion of which is in construction in progress. We are depreciating the costs associated with these leasehold and land improvements over their estimated remaining lives of approximately 12 years, which exceeds the remaining lease terms that primarily expire in 2018. It is our intent to extend, renew, or replace the related party property leases such that we have unrestricted use of the buildings and improvements throughout their estimated useful lives. Extension, renewal or replacement of the related party property leases is dependent on negotiations with related parties, the failure of which could result in material disputes with the related parties. In the event we do not extend, renew, or replace these related party property leases, we will revise the remaining estimated useful lives of the buildings and other improvements accordingly.

We were a party to certain agreements relating to the rental of aircraft to Western Airways ("WA"), an entity owned by the Mosing family. The WA agreements reflected both dry lease and wet lease rental, whereby we were charged a flat monthly fee primarily for crew, hangar, maintenance and administration costs in addition to other variable costs for fuel and maintenance. We also earned charter income from third party usage through a revenue sharing agreement. We recorded net charter expense of $1.1 million, $1.3 million and $2.0 million for the years ended December 31, 2017, 2016 and 2015, respectively. In August 2017, we paid WA a $0.2 million commission for brokering the sale of a plane. In December 2017, we sold a plane to Mosing Aviation, LLC, an entity owned by the Mosing family, for $0.7 million. The rental agreements were terminated with WA effective December 29, 2017 upon the sale of our last aircraft.

Tax Receivable Agreement

Mosing Holdings and its permitted transferees converted all of their Preferred Stock into shares of our common stock on a one-for-one basis on August 26, 2016, subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications and other similar transactions, by delivery of an equivalent portion of their interests in FICV to us (the “Conversion”). FICV made an election under Section 754 of the Internal Revenue Code. Pursuant to the Section 754 election, the Conversion resulted in an adjustment to the tax basis of the tangible and intangible assets of FICV with respect to the portion of FICV now held by FINV. These adjustments are allocated to FINV. The adjustments to the tax basis of the tangible and intangible assets of FICV described above would not have been available absent this Conversion. The basis adjustments may reduce the amount of tax that FINV would otherwise be required to pay in the future. These basis adjustments may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets.

The TRA that we entered into with FICV and Mosing Holdings in connection with our initial public offering ("IPO") generally provides for the payment by FINV of 85% of the amount of the actual reductions, if any, in payments of U.S. federal, state and local income tax or franchise tax (which reductions we refer to as “cash savings”) in periods after our IPO as a result of (i) the tax basis increases resulting from the Conversion and (ii) imputed interest deemed to be paid by us as a result of, and additional tax basis arising from, payments under the TRA. In addition, the TRA provides for payment by us of interest earned from the due date (without extensions) of the corresponding tax return to the date of payment specified by the TRA. The payments under the TRA will not be conditioned upon a holder of rights under the TRA having a continued ownership interest in either FICV or FINV. We will retain the remaining 15% of cash savings, if any.

The estimation of the liability under the TRA is by its nature imprecise and subject to significant assumptions regarding the amount and timing of future taxable income. As of December 31, 2016, our estimated TRA liability was $124.6 million, which was included in other non-current liabilities on our consolidated balance sheet. As of December 31, 2017, FINV has a cumulative loss over the prior 36 month period. Based on this history of losses, as well as uncertainty regarding the timing and amount of future taxable income, we are no longer able to conclude that there will be future cash savings that will lead to additional payouts under the TRA beyond the estimated $2.1 million as of December 31, 2017. Additional TRA liability may be recognized in the future based on changes in expectations regarding the timing and likelihood of future cash savings.

The payment obligations under the TRA are our obligations and are not obligations of FICV. The term of the TRA will continue until all such tax benefits have been utilized or expired, unless FINV elects to exercise its sole right to terminate the TRA early. If FINV elects to terminate the TRA early, which it may do so in its sole discretion, it would be required to make an immediate payment equal to the present value of the anticipated future tax benefits subject to the TRA (based upon certain assumptions and deemed events set forth in the TRA, including the assumption that it has sufficient taxable income to fully utilize such benefits and that any FICV interests that Mosing Holdings or its transferees own on the termination date are deemed to be exchanged on the termination date). Any early termination payment may be made significantly in advance of the actual realization, if any, of such future benefits. In addition, payments due under the TRA will be similarly accelerated following certain mergers or other changes of control. In these situations, FINV’s obligations under the TRA could have a substantial negative impact on our liquidity and could have the effect of delaying, deferring or preventing certain mergers, asset sales, other forms of business combinations or other changes of control. For example, if the TRA were terminated on December 31, 2017, the estimated termination payment would be approximately $60.7 million (calculated using a discount rate of 5.58%). The foregoing number is merely an estimate and the actual payment could differ materially.

Because FINV is a holding company with no operations of its own, its ability to make payments under the TRA is dependent on the ability of FICV to make distributions to it in an amount sufficient to cover FINV’s obligations under such agreements; this ability, in turn, may depend on the ability of FICV’s subsidiaries to provide payments to it. The ability of FICV and its subsidiaries to make such distributions will be subject to, among other things, the applicable provisions of Dutch law that may limit the amount of funds available for distribution and restrictions in our debt instruments. To the extent that FINV is unable to make payments under the TRA for any reason, except in the case of an acceleration of payments thereunder occurring in connection with an early termination of the TRA or certain mergers or change of control, such payments will be deferred and will accrue interest until paid, and FINV will be prohibited from paying dividends on its common stock.