On February 20, 2018 Deltic Timber Corporation (Deltic) merged with a wholly owned subsidiary of PotlatchDeltic. Deltic owned approximately 530,000 acres of timberland, operated two sawmills, a medium density fiberboard facility (MDF) and was engaged in real estate development primarily in Arkansas.

The acquisition of total assets of $1.4 billion was a noncash investing and financing activity comprised of $1.1 billion in equity consideration transferred to Deltic shareholders and $0.3 billion of liabilities assumed.

We expensed $1.0 million and $20.3 million of merger-related costs during the three and six months ended June 30, 2018, respectively. Total merger-related costs consisted of:

These costs are included in Deltic merger-related costs in our Condensed Consolidated Statements of Income.

The amount of revenue and income before income taxes from the acquired Deltic operations included in our Condensed Consolidated Statements of Income from February 21, 2018 to June 30, 2018 were as follows:

(in thousands, except per share amounts)	Three Months Ended June 30, 2018		Six Months Ended June 30, 2018
Net sales	$	80,053	$	108,859
Income before income taxes	$	16,724	$	7,613

The following presents the unaudited pro forma consolidated financial information of the company as if the merger with Deltic was completed on January 1, 2017:


(in thousands, except per share amounts)	Three Months Ended June 30, 2018		Six Months Ended June 30, 2018
Net sales	$	268,233	$	506,793
Net earnings attributable to PotlatchDeltic common shareholders	$	47,225	$	80,928
Basic earnings per share attributable to PotlatchDeltic common shareholders	$	0.71	$	1.22
Diluted earnings per share attributable to PotlatchDeltic common shareholders	$	0.71	$	1.21

Pro forma net earnings attributable to PotlatchDeltic common shareholders excludes $1.0 million and $25.7 million of non-recurring merger-related costs incurred by both companies during the three and six months ended June 30, 2018, of which $5.4 million were incurred by Deltic prior to the merger. Pro forma data may not be indicative of the results that would have been obtained had these events occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.