Acquisition and Acquisition-Related Contingent Consideration (Details) (Jasper [Member], USD $) In Thousands, unless otherwise specified	Jun. 13, 2014
Business Acquisition [Line Items]
Cash and cash equivalents	$ 28,678
Property, plant and equipment	520
Other assets	4,362
In-process technology	10,300
Goodwill	81,269
Total assets acquired	207,829
Deferred revenue	(11,900)
Other liabilities	(7,719)
Long-term deferred tax liabilities	(20,002)
Net assets acquired	168,208
Existing technology [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangibles:	68,200
Agreements and relationships [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangibles:	13,600
Tradenames and trademarks [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangibles:	$ 900