Restructuring Charges (Tables)

6 Months Ended

Jun. 30, 2017

Restructuring And Related Activities [Abstract]

Schedule of Accrued Liabilities for Severance and Related Expenses and Payments

The following table presents accrued liabilities for severance and related expenses and payments (in thousands) as of June 30, 2017.

	As of							As of
	December 31, 2016		Charge		CashPayments			June 30, 2017
Severance and related expenses	$	—	$	1,351	$	(1,292	)	$	59