See the reconciliations of non-GAAP measures on pages 27 and 28.
Income Taxes - See Income Taxes in Note 1 to our consolidated financial statements.
Acquisition integration costs include costs related to our July 2, 2014 acquisition of Noraxis Capital Corporation (which we refer to as Noraxis), our June 16, 2014 acquisition of Crombie/OAMPS (which we refer to as Crombie/OAMPS), our April 1, 2014 acquisition of Oval Group of Companies (which we refer to as Oval), our November 14, 2013 acquisition of Giles Group of Companies (which we refer to as Giles) and our August 1, 2015 acquisition of William Gallagher Associates Insurance Brokers (which we refer to WGA) that are not expected to occur on an ongoing basis in the future once we fully assimilate these acquisitions. These costs relate to on-boarding of employees, communication system conversion costs, related performance compensation, redundant workforce, extra lease space, duplicate services and external costs incurred to assimilate the acquired businesses with our IT related systems. The WGA integration costs in 2016 totaled $5.0 million and were primarily related to retention and incentive compensation. The Noraxis integration costs in 2016 totaled $1.9 million and were primarily related to the consolidation of offices, technology costs and incentive compensation. The Crombie/OAMPS integration costs in 2016 totaled $3.2 million, and were primarily related to technology costs and incentive compensation. The Giles and Oval integration costs in 2016 totaled $35.6 million and were primarily related to the consolidation of offices in the U.K., technology costs, branding and incentive compensation. The Noraxis integration costs in 2015 totaled $7.4 million and were primarily related to the consolidation of offices, technology costs and incentive compensation. The Crombie/OAMPS integration costs in 2015 totaled $23.4 million, and were primarily related to technology costs and incentive compensation. The Giles and Oval integration costs in 2015 totaled $69.0 million and were primarily related to the consolidation of offices in the U.K., technology costs, branding and incentive compensation. Integration costs related to these acquisitions for the full year in 2017 are estimated to be less than a third of what they were in 2016.
Depreciation - The increases in depreciation expense in 2016 compared to 2015 and in 2015 compared to 2014 were due primarily to the purchases of furniture, equipment and leasehold improvements related to office expansions and moves, and expenditures related to upgrading computer systems. Also contributing to the increases in depreciation expense in 2016, 2015 and 2014 were the depreciation expenses associated with acquisitions completed during these years.
We currently have $2.7 million of construction commitments related to our refined coal plants.
See Note 12 to our consolidated financial statements for additional information required to be disclosed relating to our defined benefit postretirement plans. We are required to recognize an accrued benefit plan liability for our underfunded defined benefit pension and unfunded retiree medical plans (which we refer to together as the Plans). The offsetting adjustment to the liabilities required to be recognized for the Plans is recorded in “Accumulated Other Comprehensive Earnings (Loss),” net of tax, in our consolidated balance sheet. We will recognize subsequent changes in the funded status of the Plans through the income statement and as a component of comprehensive earnings, as appropriate, in the year in which they occur. Numerous items may lead to a change in funded status of the Plans, including actual results differing from prior estimates and assumptions, as well as changes in assumptions to reflect information available at the respective measurement dates.
We have a secured revolving loan facility (which we refer to as the Premium Financing Debt Facility), that provides funding for the three Australian (AU) and New Zealand (NZ) premium finance subsidiaries. The Premium Financing Debt Facility is comprised of: (i) Facility B, with is separated into AU$150.0 million and NZ$35.0 million tranches, (ii) Facility C, an AU$25.0 million equivalent multi-currency overdraft tranche and (iii) Facility D, a NZ$15.0 million equivalent multi-currency overdraft tranche. The Premium Financing Debt Facility expires May 18, 2017. At December 31, 2016, $125.6 million of borrowings were outstanding under the Premium Financing Debt Facility.
In February 2015, the FASB issued ASU No. 2015-02, Amendments to the Consolidation Analysis. This new accounting guidance on consolidations eliminates the deferral granted to investment companies from applying the variable interest entities guidance and makes targeted amendments to the current consolidation guidance. The new guidance applies to all entities involved with limited partnerships or similar entities and will require re-evaluation of these entities under the revised guidance, which could have changed previous consolidation conclusions. The new guidance was effective in first quarter 2016 and has been applied by us. The adoption of this guidance did not have a material impact on our consolidated financial statements.
In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. The new accounting guidance requires that deferred tax assets and liabilities be classified as noncurrent on the balance sheet rather than being separated into current and noncurrent components. ASU 2015-17 is effective in first quarter 2017. Early adoption is permitted and the standard may be applied either retrospectively or on a prospective basis to all deferred tax assets and liabilities. We early adopted ASU 2015-17 during first quarter 2016 on a retrospective basis. Accordingly, we reclassified the current deferred taxes to noncurrent in our December 31, 2015 consolidated balance sheet, which increased Noncurrent deferred tax assets by $122.1 million and increased Other noncurrent liabilities by $4.6 million. See Note 17 to our consolidated financial statements for a discussion on income tax balances.
A preliminary assessment to determine the impacts of the new accounting standard has been performed. We are currently implementing new accounting and operational processes which will be impacted by the new guidance, but we are unable to provide information on quantitative impacts at this time. We anticipate this standard will have a material impact on individual lines in our consolidated financial statements, but we do not expect it will have as material an impact on our results of operations on an annual basis. The primary impacts of the new standard to our product and service lines are anticipated to be as follows:
On March 13, 2013, pursuant to the Program, the compensation committee approved the provisional cash awards of $10.5 million in the aggregate for future grants to our officers and key employees that are denominated in units (269,000 units in the aggregate), each of which was equivalent to the value of one share of our common stock on the date the provisional awards were approved. Terms of the 2013 provisional award were similar to the terms of the 2015 provisional awards. Based on our performance for 2013, we granted 263,000 units under the Program in the first quarter of 2014 that will fully vest on January 1, 2016. During 2015 and 2014, we charged $5.3 million and $5.9 million, respectively, to compensation expense related to the 2013 awards. We did not recognize any compensation expense during 2016 related to the 2013 awards. During 2016, cash awards related to the 2013 provisional awards with an aggregate fair value of $11.2 million (246,000 units in the aggregate) were vested and distributed to employees under the Program.
The remaining three plants are in early stages of seeking and negotiating long-term production contracts.