7.	Goodwill and Intangible Assets

(Table only in thousands)	Energy Segment			Environmental Segment			Fluid Handling and Filtration Segment			Totals
Balance of goodwill at December 31, 2015	$	72,075		$	55,031		$	93,057		$	220,163
2016 acquisition related adjustments		4,205			—			—			4,205
Impairment charge		—			(6,828	)		(46,934	)		(53,762	)
Foreign currency translation		(453	)		—			—			(453	)
Balance of goodwill at December 31, 2016		75,827			48,203			46,123			170,153
Impairment charge		(4,443	)		—			—			(4,443	)
Foreign currency translation		1,241			—			—			1,241
Balance of goodwill at December 31, 2017	$	72,625		$	48,203		$	46,123		$	166,951

As of December 31, 2017 and 2016, the Company has an aggregate amount of goodwill acquired of $242.3 million and $241.1 million, respectively, and an aggregate amount of impairment losses of $75.3 million and $70.9 million, respectively.

2016 acquisition related adjustments consisted of the finalization of the purchase accounting for PMFG. These adjustments included decreases of $5.5 million to property and equipment and $1.7 million to current assets partially offset by decreases of $1.1 million to the deferred income tax liability and $1.8 million to the noncontrolling interest.

The Company’s indefinite lived intangible assets as of December 31, 2017 and 2016 consisted of the following:

	Tradenames
(Table only in thousands)	2017			2016
Beginning balance	$	22,042		$	26,337
Impairment charge		(2,725	)		(4,161	)
Foreign currency adjustments		374			(134	)
Total indefinite lived intangible assets	$	19,691		$	22,042

The Company completes an annual (or more often if circumstances require) impairment assessment of its goodwill and indefinite life intangible assets on October 1 at the reporting unit level. Effective January 1, 2017, the Company prospectively adopted accounting guidance that simplifies goodwill impairment testing by eliminating the requirement to calculate the implied fair value of goodwill (formerly “Step 2”) in the event that an impairment is identified. Instead, an impairment charge is recorded based on the excess of the reporting unit’s carrying amount over its fair value. Prior to 2017, a goodwill impairment test as described in FASB ASC 350-20-35 was performed for all reporting units.

The Company bases its measurement of the fair value of a reporting unit using a weighting of the income method and the market method on a 50/50 basis. The income method is based on a discounted future cash flow approach that uses the significant assumptions of projected revenue, projected operational profit, terminal growth rates, and the cost of capital. Projected revenue, projected operational profit and terminal growth rates were determined to be significant assumptions because they are three primary drivers of the projected cash flows in the discounted future cash flow approach. Cost of capital was also determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected cash flows. The market method is based on financial multiples of comparable companies and applies a control premium. Significant estimates in the market approach include identifying similar companies with comparable business factors such as size, growth, profitability, risk and return on investment and assessing comparable revenue and operating income multiples in estimating the fair value of a reporting unit.

Based on the analysis, the resultant estimated fair value of the reporting units for all but the Zhongli reporting unit exceeded their carrying value as of October 1, 2017. The impairment test indicated full goodwill impairment for one reporting unit of $4.4 million, which was recorded in the fourth quarter of fiscal 2017. The impairment was due to lower projected operating performance due primarily to the declining coal market in China. This reporting unit is included in the Energy segment.

In the 2017 impairment analysis for reporting unit one, two and three, which as of December 31, 2017, carry goodwill of $32.4 million, $59.9 million and $5.7 million, and the fair value only exceeded the carrying value by 6%, 3% and 2%, respectively. The reporting units were acquired in 2014, 2015 and 2007, respectively, reporting unit one is reported within the Environmental segment while reporting unit two and three are reported within the Energy segment. Management’s projections used to estimate the undiscounted cash flows included increasing sales volumes and operational improvements designed to reduce costs. Changes in any of the significant assumptions used, including if the Company does not successfully achieve its 2018 operating plan, can materially affect the expected cash flows, and such impacts can result in a potentially material non-cash impairment charge. Therefore, the key assumptions most susceptible to change are projected revenue and projected operational profit. We determined that with other assumptions held constant under our weighted income and market method for measuring fair value, a decrease in projected revenue growth rates of approximately 11 basis points, 4 basis points and 1 basis point or a decrease in projected operational profit growth rates of approximately 65 basis points, 16 basis points and 20 basis points for reporting unit one, two and three would result in fair value of the reporting unit being equal to its carrying value.

The Company also performed an impairment analysis for all reporting units with indefinite life intangible assets. The Company based its measurement of the fair value of the indefinite life intangible assets utilizing the relief from royalty method. The significant assumptions used under the relief from royalty method are projected revenue, royalty rates, terminal growth rates, and the cost of capital. Projected revenue, royalty rates and terminal growth rates were determined to be significant assumptions because they are three primary drivers of the projected royalty cash flows in the relief from royalty method. Cost of capital was also determined to be a significant assumption as it is the discount rate used to calculate the current fair value of those projected royalty cash flows. Changes in any of the significant assumptions used can materially affect the expected cash flows, and such impacts can result in material non-cash impairment charges. Under this approach, the resultant estimated fair value of the indefinite life intangible assets exceeded their carrying value for all but four reporting units as of December 31, 2017. For four of the reporting units, which carried combined indefinite life intangible assets of $13.1 million, our fair value measurement resulted in the aggregate fair value being 20.7% lower than the aggregate carrying value. Accordingly, we recorded an impairment charge of $2.7 million during the year ended December 31, 2017. The Zhongli reporting unit with indefinite life intangible asset impairment of $0.9 million, respectively, was acquired in the second half of fiscal 2014. Reporting unit two with indefinite life intangible asset impairment of $1.0 million was acquired in the second half of 2015. Reporting unit three with indefinite life intangible asset impairment of $0.3 million was acquired in 2007. Reporting unit four with indefinite life intangible asset impairment of $0.5 million was acquired in the second half of 2013. The Zhongli and reporting units two, three and four are reported within the Energy Segment. Management’s projections used to estimate the fair values at the date of acquisition primarily included increasing sales volumes; however, the units have experienced lower sales than originally projected.

As a result of the impairments noted above, the Company concluded there was a triggering event that required an impairment test to be performed to support the definite lived intangible assets and other long-lived assets carrying value. An undiscounted cash flow analysis was performed at the lowest level of cash flows for each asset group and the sum of the undiscounted cash flows exceeded the long-lived assets’ carrying values. As a result of this analysis, no impairment related to these assets was recorded in 2017.

During the annual impairment test of indefinite life intangible assets in 2016 and 2015, the carrying values of four and three, respectively, reporting units’ indefinite life intangible assets exceeded their fair values. The Company recorded a $4.2 million and $3.3 million impairment charge during the years ended December 31, 2016 and 2015, respectively. There was goodwill impairment of $53.8 million in the year ended December 31, 2016 and no goodwill impairment in the year ended December 31, 2015.

As described above, the fair value measurement methods used in the Company’s goodwill and indefinite life intangible assets impairment analyses utilizes a number of significant unobservable inputs or Level 3 assumptions. These assumptions include, among others, projections of our future operating results, the implied fair value of these assets using an income approach by preparing a discounted cash flow analysis and other subjective assumptions.

The Company’s finite lived intangible assets as of December 31, 2017 and 2016 consisted of the following:

	2017						2016
(Table only in thousands) Intangible assets – finite life	Cost			Accum. Amort.			Cost			Accum. Amort.
Technology	$	15,867		$	8,609		$	15,867		$	6,360
Customer lists		77,497			35,024			77,497			26,041
Noncompetition agreements		1,118			698			1,118			478
Tradename		1,390			440			1,390			301
Foreign currency adjustments		(1,214	)		(69	)		(2,964	)		(1,000	)
Total finite life intangible assets	$	94,658		$	44,702		$	92,908		$	32,180

Amortization expense of finite life intangible assets was $11.5 million, $13.9 million and $12.3 million for 2017, 2016 and 2015, respectively. Amortization over the next five years for finite life intangibles is $10.1 million in 2018, $8.9 million in 2019, $7.2 million in 2020, $5.9 million in 2021, and $4.9 million in 2022.

The weighted average amortization period for the finite lived intangible assets acquired in fiscal 2015 is 8.7 years.