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Business Combinations
 3 Months Ended
Mar. 31, 2016
Business Combinations [Abstract]  
Business Combinations
Business Combinations
Thermax Acquisition
On July 1, 2015, the Company acquired 100% of the equity interests of Thermax, Inc. (“Thermax”) for an estimated purchase price of $29,684 after working capital adjustments, of which $24,197 was paid at closing (net of $2,307 in cash acquired). The cash purchase price is subject to post-closing adjustments. The remainder of the estimated purchase price represents the estimated fair value of the contingent consideration to be paid over four years based on the achievement of certain earnings targets. The fair value of the net assets acquired and goodwill at the date of acquisition was $19,264 and $10,420, respectively. Net assets includes $10,000 in intangible assets, which consists of customer relationships, unpatented technology and trademarks and trade names.
Thermax, headquartered in Dartmouth, Massachusetts, designs and sells cryogenic fluid vaporizers and other ambient and powered vaporizer products utilized in industrial gas, petrochemical, and liquefied natural gas applications. Thermax’s results are included in the Company’s D&S business segment from the date of acquisition.

Contingent Consideration
The estimated fair value of contingent consideration relating to the Thermax acquisition was $1,800 at the date of acquisition and was valued according to a discounted cash flow model, which includes assumptions regarding the probability of achieving certain earnings targets and a discount rate applied to the potential payments. Potential payments may be paid between July 1, 2016 and July 1, 2019 based on the attainment of certain earnings targets. The potential payments related to Thermax contingent consideration is between $0 and $11,288. The fair value of the Thermax contingent consideration at March 31, 2016 was $1,761. For the three months ended March 31, 2016, there was no change in the estimated fair value of contingent consideration related to Thermax.
The potential contingent consideration related to a prior BioMedical segment acquisition expired at the end of March 2016 with no additional payment. For the three months ended March 31, 2015, the fair value of contingent consideration related to the BioMedical segment decreased by $463.
Valuations are performed using Level 3 inputs as defined in Note 8 and are evaluated on a quarterly basis based on forecasted sales and earnings targets. Contingent consideration liabilities are classified as other current liabilities and other long-term liabilities in the condensed consolidated balance sheets. Changes in fair value of contingent consideration, including accretion, are recorded as selling, general and administrative expenses in the condensed consolidated statements of operations and comprehensive income (loss).