Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill [Abstract]

Changes In The Carrying Amount Of Goodwill By Geographic Reporting Unit

(in thousands)	Americas		EMEA		Asia Pacific		Total
Balance at December 31, 2013	$	264,735		71,155		34,176		370,066
Acquisitions and adjustments		72,872		163,025		—		235,897
Effect of foreign currency exchange rates		1,804		(17,238)		(992)		(16,426)
Balance at December 31, 2014		339,411	$	216,942	$	33,184	$	589,537
Acquisitions and adjustments		47,452		2,602		5,208		55,262
Impairment of goodwill		(382,271)		(61,388)		—		(443,659)
Effect of foreign currency exchange rates		(4,592)		(7,635)		(1,038)		(13,265)
Balance at December 31, 2015	$	—	$	150,521	$	37,354	$	187,875