Acquisitions and Divestitures (Tables)

9 Months Ended

Sep. 30, 2013

Business Combinations [Abstract]

Acquisition and divestiture activity

The Company's acquisition and divestiture activity is summarized below:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
	(in millions)
Acquisition:
Purchase price	$	—	$	5.5	$	83.4	$	7.5
Net cash paid	$	—	$	4.9	$	37.2	$	4.9
Goodwill recorded	$	—	$	3.2	$	9.5	$	4.0
Divestiture:
Proceeds	$	—	$	—	$	35.6	$	2.1
Gain recognized	$	—	$	—	$	12.5	$	1.5
Goodwill charged off	$	—	$	—	$	4.8	$	0.1

Assets and liabilities classified as held for sale and discontinued operations and condensed results of operations for the ready-mix concrete operations

Further, assets and liabilities related to the discontinued operations have been classified as Assets/Liabilities Held for Sale and Discontinued Operations in the accompanying consolidated balance sheets as follows:

	September 30, 2013		December 31, 2012
	(in millions)
Assets of Ready-Mix Concrete Operations:
Inventories	$	—	$	4.5
Property, plant, and equipment, net	—		16.9
Goodwill	—		6.3
Other	—		0.2
	$	—	$	27.9
Liabilities of Ready-Mix Concrete Operations:
Debt	$	—	$	3.7
	$	—	$	3.7

Condensed results of operations for the ready-mix concrete operations for the three and nine months endedSeptember 30, 2013 and 2012 are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013			2012
	(in millions)
Revenues	$	—	$	30.2	$	31.6		$	92.2
Income (loss) from discontinued operations before income taxes	$	0.4	$	1.1	$	(1.9	)	$	3.3
Income tax expense (benefit)	0.1		0.4		(0.7		)	1.2
Net income (loss) from discontinued operations	$	0.3	$	0.7	$	(1.2	)	$	2.1