Goodwill and Intangible Assets - Schedule of Carrying Amounts of Indefinite-Lived Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Balance beginning period	$ 83,388
Foreign currency translation	193
Balance ending period	83,581
Commercial [Member]
Balance beginning period	69,735
Foreign currency translation
Balance ending period	69,735
Public Sector [Member]
Balance beginning period	8,322
Foreign currency translation
Balance ending period	8,322
Canada [Member]
Balance beginning period	5,331
Foreign currency translation	193
Balance ending period	$ 5,524