Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring Charges.

Schedule of restructuring activity

	Personnel
	Severance and			Facility
	Related Costs			Closing Costs				Total
	(in thousands)
Balance at December 31, 2012	$	1,875			$	—			$	1,875
Provision	1,485				—				1,485
Payments	(2,827		)		—				(2,827		)
Balance at December 31, 2013	533				—				533
Provision	4,012				382				4,394
Payments	(3,117		)		(382		)		(3,499		)
Balance at December 31, 2014	$	1,428			$	—			$	1,428