Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Commitments and Contingencies - Additional Details (Details 2)

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Commitments and Contingencies Commitments and Contingencies - Additional Details (Details 2)
 3 Months Ended
Nov. 11, 2015
Dec. 17, 2013
Mar. 31, 2016
USD ($)
ft²
Lease Expiration Date     Dec. 31, 2022
The Campus Carlsbad, LLC [Member]      
Date Amended Carlsbad Lease     May 06, 2015
Operating Lease, Area of Property | ft²     45,000
Operating Lease, Additional Square Footage | ft²     24,000
Lease Incentive for Leasehold Improvements     $ 1,543,000
Lessee Leasing Arrangements, Operating Leases, Term of Contract   3 years 7 months  
Northwest Mutual Life Insurance Company [Member]      
Operating Lease, Area of Property | ft²     50,235
Lease Incentive for Leasehold Improvements     $ 2,700,000
Date of Irvine Lease at Parker     Nov. 11, 2015
Operating Leases, Rent Expense, Minimum Rentals     $ 68,000
Operating Leases, Rent Expense, Minimum Rentals, Escalated     $ 86,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term     5 years
Lessee Leasing Arrangements, Operating Leases, Term of Contract 6 years 2 months