Acquisitions (Tables)

6 Months Ended

Jun. 30, 2012

Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed

The allocation of the acquisition costs to the assets acquired and liabilities assumed, based on their estimated fair values, is as follows:

	ERC			PPC			Total
Accounts receivable	$	5,766		$	877		$	6,643
Inventory		4,217			932			5,149
Other current assets, net of cash acquired		417			328			745
Property, plant and equipment		2,738			1,985			4,723
Goodwill		10,837			15,012			25,849
Intangible assets		5,642			5,094			10,736
Other assets		67			13			80
Total assets acquired		29,684			24,241			53,925
Total liabilities assumed		(16,073	)		(3,651	)		(19,724	)
Net assets acquired	$	13,611		$	20,590		$	34,201

Acquired Intangible Assets and Weighted Average Amortization Periods

The acquired intangible assets and weighted average amortization periods are as follows:

	Total		Weighted Average Life
Trade names	$	1,017		15
Customer relationships		7,585		6
Unpatented technology		2,134		6
2012 acquired intangible assets	$	10,736