Restructuring - Summary of Restructuring Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Restructuring Cost And Reserve [Line Items]
Charges to expense	$ 854
Non-cash utilization	(618)
Balance at March 31, 2017	236
Employee Reduction [Member]
Restructuring Cost And Reserve [Line Items]
Charges to expense	224
Balance at March 31, 2017	224
Accelerated Depreciation [Member]
Restructuring Cost And Reserve [Line Items]
Charges to expense	618
Non-cash utilization	(618)
Other Costs [Member]
Restructuring Cost And Reserve [Line Items]
Charges to expense	12
Balance at March 31, 2017	$ 12