Commitments and Contingencies Commitments (Details) (USD $)	Dec. 31, 2014
Operating Leases
2015 (remainder of year)	$ 616,000	[1]
2016	1,528,000	[1]
2017	1,093,000	[1]
2018	632,000	[1]
Total minimum payments	3,869,000	[1]
Purchase Commitments
2015 (remainder of year)	16,909,000	[2]
2016	13,368,000	[2]
2017	3,241,000	[2]
2018	2,833,000	[2]
Total minimum payments	36,351,000	[2]
Total
2015 (remainder of year)	17,525,000
2016	14,896,000
2017	4,334,000
2018	3,465,000
Total minimum payments	40,220,000
Licensing Costs Due	$ 21,100,000

[1] Includes the Company's headquarters building lease which expires in August 2015, subject to our right to terminate early upon at least 120 days’ notice.

[2] Includes open purchase orders with terms that generally allow us the option to cancel or reschedule the order, subject to various restrictions and limitations. Also includes the licensing fees relating to the Company's R&D efforts, including licensed intellectual property, or IP, technology, product design, test and verification tools, of $21.1 million.