Nature of Business, Basis of Presentation and Significant Accounting Policies - Textual (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Agreement	Apr. 01, 2017 USD ($)	Dec. 31, 2017 USD ($)
Accounting Policies [Line Items]
Fiscal year/fiscal quarter duration	91 days	91 days
Peformance obligation payment terms	The timing of satisfaction of the performance obligation to payment is dependent upon the negotiated payment terms but generally occurs within 30 to 60 days.
Maximum period of delivery to customers	6 months
Maximum period services are provided over the fixed arrangement term	12 months
Revenue recognized	$ 82,313	$ 59,314
Contract assets balance			$ 4,300
Accounts Receivable [Member]
Accounting Policies [Line Items]
Contract assets balance	4,400
Accounting Standards Update 2014-09 [Member]
Accounting Policies [Line Items]
Revenue recognized	$ 1,500
Minimum [Member]
Accounting Policies [Line Items]
Fiscal year/fiscal quarter duration	364 days
Number of peformance obligations | Agreement	1
Maximum [Member]
Accounting Policies [Line Items]
Fiscal year/fiscal quarter duration	371 days