The Company and Subsequent Events (Tables)

6 Months Ended

Jun. 30, 2018

Company And Subsequent Events [Abstract]

Summary of Reconciliation of Restructuring Liability

Restructuring Liability

A reconciliation of the beginning and ending restructuring liability is as follows:

	One-Time Employee Termination Benefit Costs			Contract Termination Costs			Consulting Costs			Asset Disposal Costs			Total
Six Months Ended June 30, 2018
Balance, beginning of period	$	—		$	—		$	—		$	—		$	—
Additions, charged to costs		2,828			446			1,499			2,307			7,080
Payments and impairments		(1,951	)		(18	)		(867	)		(2,307	)		(5,143	)
Balance, end of period	$	877		$	428		$	632		$	—		$	1,937