Business Combinations - Acquired Intangible Assets (Details) - CTG Advanced $ in Thousands	Mar. 11, 2016 USD ($)
Business Acquisition
Fair Value	$ 35,427
Weighted Average Amortization Period (in years)	14 years 9 months 20 days
Developed Technology
Business Acquisition
Fair Value	$ 23,730
Weighted Average Amortization Period (in years)	15 years
Customer Relationships and Contracts
Business Acquisition
Fair Value	$ 11,502
Weighted Average Amortization Period (in years)	14 years 7 months 6 days
Other
Business Acquisition
Fair Value	$ 195
Weighted Average Amortization Period (in years)	9 months 18 days