Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Other Intangible Assets

Summary of the Company's amortizable intangible assets

	September 30, 2013				December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	171,400	$	65,600	$	166,800	$	54,000
Proprietary technology	44,200		21,500		44,200		18,800
License agreements	6,000		5,900		6,000		5,300
Trade names and other	9,400		7,900		9,400		7,700
Total	$	231,000	$	100,900	$	226,400	$	85,800