BUSINESS COMBINATIONS

6 Months Ended

Jun. 30, 2020

In the six months ended June 30, 2020, we acquired four businesses: three tuck-in solid waste collection businesses in our Western region and one recycling operation in our Resource Solutions segment. In the six months ended June 30, 2019, we acquired three tuck-in solid waste collection businesses in our Eastern region and a business comprised of solid waste collection, transfer and recycling operations in our Western region. The operating results of the acquired businesses are included in the accompanying unaudited consolidated statements of operations from each date of acquisition, and the purchase price has been allocated to the net assets acquired based on fair values at each date of acquisition, with the residual amounts recorded as goodwill. Acquired intangible assets other than goodwill that are subject to amortization include client lists and non-compete covenants. Such assets are amortized over a five to ten year period from the date of acquisition. All amounts recorded to goodwill are expected to be deductible for tax purposes.

A summary of the purchase price paid for these acquisitions and the allocation of the purchase price for these acquisitions follows:


	Six Months Ended June 30,
	2020		2019
Purchase Price:
Cash used in acquisitions, net of cash acquired	$	19,212	$	25,546
Notes payable	—		2,250


Contingent consideration and holdbacks	2,837		1,120
Total	22,049		28,916
Allocated as follows:
Current assets	132		1,865

Land	685		726
Buildings	2,118		2,602
Equipment	8,277		8,655
Intangible assets	5,912		11,619
Other liabilities, net	(222)		(1,546)
Deferred tax liability	—		(2,137)
Fair value of assets acquired and liabilities assumed	16,902		21,784
Excess purchase price allocated to goodwill	$	5,147	$	7,132

Certain purchase price allocations are preliminary and are based on information existing at the acquisition dates or upon closing the transaction. Accordingly, these purchase price allocations are subject to change. Unaudited pro forma combined information that shows our operational results as though each acquisition completed since the beginning of the prior fiscal year had occurred as of January 1, 2019 is as follows:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Revenues	$	189,026	$	201,608	$	373,623	$	381,518
Operating income	$	17,448	$	16,850	$	24,517	$	22,751
Net income	$	12,115	$	12,629	$	13,087	$	11,709

Basic earnings per share attributable to common stockholders:
Weighted average common shares outstanding	48,348		47,464		48,176		46,693
Basic earnings per common share	$	0.25	$	0.27	$	0.27	$	0.25
Diluted earnings per share attributable to common stockholders:
Weighted average common shares outstanding	48,563		48,221		48,411		47,424
Diluted earnings per common share	$	0.25	$	0.26	$	0.27	$	0.25

The unaudited pro forma results set forth in the table above have been prepared for comparative purposes only and are not necessarily indicative of the actual results of operations had the acquisitions occurred as of January 1, 2019 or of the results of our future operations. Furthermore, the unaudited pro forma results do not give effect to all cost savings or incremental costs that may occur as a result of the integration and consolidation of the completed acquisitions.