Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Goodwill and Other Intangible Assets

Summary of the Company's amortizable intangible assets

	March 31, 2014				December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	201,200	$	75,100	$	202,300	$	69,800
Proprietary technology	52,300		23,400		52,300		22,400
License agreements	6,000		6,000		6,000		6,000
Trade names and other	11,400		10,900		11,400		8,900
Total	$	270,900	$	115,400	$	272,000	$	107,100