Business Combinations Business Combinations Purchase Price Allocation (Details) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Jun. 01, 2017
Schedule of Assets and Liabilities Acquired in a Business Combination [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets			$ 15,118
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			2,275
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets			1,879
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			35,790
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			36,500
Goodwill acquired	$ 59,675	$ 59,675
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities			(10,787)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities			(4,645)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities [Abstract]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			100,015
Core Developed Technology [Member]
Schedule of Assets and Liabilities Acquired in a Business Combination [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			19,250
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		8 years
Customer Contracts And Relationships [Member]
Schedule of Assets and Liabilities Acquired in a Business Combination [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			12,230
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years
Trademarks and Trade Names [Member]
Schedule of Assets and Liabilities Acquired in a Business Combination [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			4,310
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years
In Process Research and Development [Member]
Schedule of Assets and Liabilities Acquired in a Business Combination [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			$ 710