SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Leases We have lease agreements for facilities, warehouses, office space, and property and equipment. We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use assets (“ROU assets”) and operating lease liabilities in our consolidated balance sheets. Finance leases are included in property and equipment and long-term debt in our consolidated balance sheets. ROU assets and operating lease liabilities are recognized at the lease commencement date. Operating lease liabilities represent the present value of unpaid lease payments. As the majority of our leases do not provide an implicit rate, we use our estimated incremental borrowing rate at the lease commencement date to determine the present value of unpaid lease payments. ROU assets represent our right to use underlying assets and are recorded as operating lease liabilities adjusted for prepayments or accrued lease payments, initial direct costs, lease incentives, and impairment of ROU assets. Tenant incentives used to fund leasehold improvements are recognized when earned and reduce our right-of-use asset related to the lease. These are amortized through the right-of-use asset as reductions of expense over the lease term. Our leases typically contain rent escalations over the expected lease term. We recognize expense for these leases on a straight-line basis over the expected lease term. We review the terms of any renewal options to determine if it is reasonably certain that they will be exercised, however we generally conclude that our expected lease term is the minimum noncancellable period of the lease. We have lease agreements with both lease and non-lease components, which we elected to account for as single lease components for all asset classes. Leases with an initial term of 12 months or less are not recorded on the balance sheet and are expensed on a straight-line basis over the related lease term. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. Accounting Pronouncements Recently Adopted We adopted ASU 2016-02, Leases, on January 1, 2019. The standard requires lessees to recognize a liability for lease obligations, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet and disclosure of key information about leasing arrangements. We elected the optional transition method to apply the standard as of the effective date and therefore, we did not apply the standard to the comparative periods presented in our financial statements. We elected the transition package of three practical expedients permitted within the standard, which eliminates the requirement to reassess prior conclusions about lease identification, lease classification and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease term and impairment of right-of-use assets. Further, we elected a short-term lease exception policy, permitting us to not apply the recognition requirements of this standard to short-term leases (i.e. leases with terms of 12 months or less) and an accounting policy to account for lease and non-lease components as a single component for certain classes of assets. Adoption of the new standard resulted in the recording of operating lease liabilities and corresponding ROU assets of $25.9 million as of January 1, 2019. Additionally, existing net liabilities for prepayments or accrued lease payments, initial direct costs and lease incentives of $5.0 million were reclassified as an offset to the ROU assets on January 1, 2019, resulting in net initial ROU assets of $20.9 million. The standard did not materially impact our consolidated statements of operations or cash flows. We adopted ASU 2017-11—Earnings Per Share (Topic 260), Distinguishing Liabilities From Equity (Topic 480), and Derivatives and Hedging (Topic 815): I. Accounting for Certain Financial Instruments with Down Round Features and II. Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception, on January 1, 2019. ASU 2017-11 eliminates the requirement that a down round feature precludes equity classification when assessing whether an instrument is indexed to an entity’s own stock. A freestanding equity-linked financial instrument no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down round feature. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. Recent Accounting Pronouncements In August 2018, the FASB issued ASU 2018-13— Fair Value Measurement (Topic 820): Disclosure Framework— Changes to the Disclosure Requirements for Fair Value Measurements. ASU 2018-13 modifies fair value measurement disclosure requirements. The effective date for ASU 2018-13 is for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company’s disclosures to the consolidated financial statements. In June 2016, the FASB issued ASU 2016-13—Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires measurement and recognition of expected credit losses for financial assets held. The amendments in ASU 2016-13 eliminate the probable threshold for initial recognition of a credit loss in current GAAP and reflect an entity’s current estimate of all expected credit losses. ASU 2016-13 is effective for interim and annual reporting periods beginning January 1, 2020, and is to be applied using a modified retrospective transition method. Earlier adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Leases

We have lease agreements for facilities, warehouses, office space, and property and equipment. We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use assets (“ROU assets”) and operating lease liabilities in our consolidated balance sheets. Finance leases are included in property and equipment and long-term debt in our consolidated balance sheets.

ROU assets and operating lease liabilities are recognized at the lease commencement date. Operating lease liabilities represent the present value of unpaid lease payments. As the majority of our leases do not provide an implicit rate, we use our estimated incremental borrowing rate at the lease commencement date to determine the present value of unpaid lease payments. ROU assets represent our right to use underlying assets and are recorded as operating lease liabilities adjusted for prepayments or accrued lease payments, initial direct costs, lease incentives, and impairment of ROU assets. Tenant incentives used to fund leasehold improvements are recognized when earned and reduce our right-of-use asset related to the lease. These are amortized through the right-of-use asset as reductions of expense over the lease term.

Our leases typically contain rent escalations over the expected lease term. We recognize expense for these leases on a straight-line basis over the expected lease term. We review the terms of any renewal options to determine if it is reasonably certain that they will be exercised, however we generally conclude that our expected lease term is the minimum noncancellable period of the lease.

We have lease agreements with both lease and non-lease components, which we elected to account for as single lease components for all asset classes. Leases with an initial term of 12 months or less are not recorded on the balance sheet and are expensed on a straight-line basis over the related lease term. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Accounting Pronouncements Recently Adopted

We adopted ASU 2016-02, Leases, on January 1, 2019. The standard requires lessees to recognize a liability for lease obligations, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet and disclosure of key information about leasing arrangements. We elected the optional transition method to apply the standard as of the effective date and therefore, we did not apply the standard to the comparative periods presented in our financial statements. We elected the transition package of three practical expedients permitted within the standard, which eliminates the requirement to reassess prior conclusions about lease identification, lease classification and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease term and impairment of right-of-use assets. Further, we elected a short-term lease exception policy, permitting us to not apply the recognition requirements of this standard to short-term leases (i.e. leases with terms of 12 months or less) and an accounting policy to account for lease and non-lease components as a single component for certain classes of assets.

Adoption of the new standard resulted in the recording of operating lease liabilities and corresponding ROU assets of $25.9 million as of January 1, 2019. Additionally, existing net liabilities for prepayments or accrued lease payments, initial direct costs and lease incentives of $5.0 million were reclassified as an offset to the ROU assets on January 1, 2019, resulting in net initial ROU assets of $20.9 million. The standard did not materially impact our consolidated statements of operations or cash flows.

We adopted ASU 2017-11—Earnings Per Share (Topic 260), Distinguishing Liabilities From Equity (Topic 480), and Derivatives and Hedging (Topic 815): I. Accounting for Certain Financial Instruments with Down Round Features and II. Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception, on January 1, 2019. ASU 2017-11 eliminates the requirement that a down round feature precludes equity classification when assessing whether an instrument is indexed to an entity’s own stock. A freestanding equity-linked financial instrument no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down round feature. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.

Recent Accounting Pronouncements

In August 2018, the FASB issued ASU 2018-13— Fair Value Measurement (Topic 820): Disclosure Framework— Changes to the Disclosure Requirements for Fair Value Measurements. ASU 2018-13 modifies fair value measurement disclosure requirements. The effective date for ASU 2018-13 is for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company’s disclosures to the consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13—Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires measurement and recognition of expected credit losses for financial assets held. The amendments in ASU 2016-13 eliminate the probable threshold for initial recognition of a credit loss in current GAAP and reflect an entity’s current estimate of all expected credit losses. ASU 2016-13 is effective for interim and annual reporting periods beginning January 1, 2020, and is to be applied using a modified retrospective transition method. Earlier adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements.