Quarterly report pursuant to Section 13 or 15(d)

Restructuring Charges - Components of Accrued Restructuring Costs (Details)

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Restructuring Charges - Components of Accrued Restructuring Costs (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
USD ($)
Restructuring Cost And Reserve [Line Items]  
Balance at period start $ 3,594 [1]
Balance at period end 1,020
Employee Severance and Other Benefits [Member]  
Restructuring Cost And Reserve [Line Items]  
Balance at period start 3,594
Restructuring charges 3,480
Cash payments (6,054)
Balance at period end $ 1,020
[1] The condensed consolidated balance sheet as of December 31, 2016 has been derived from the audited consolidated financial statements as of that date included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.