Restructuring Costs (Tables)

9 Months Ended

Sep. 30, 2015

Restructuring Costs [Abstract]

Summary of changes in the accrual for restructuring costs

	Restructuring costs
Accrued expense balance as of December 31, 2014	$	(7,956	)
Amounts paid		16,418
Additional accrued expense		(11,568	)
Accrued expense balance as of September 30, 2015	$	(3,106	)