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Supplemental Consolidated Balance Sheet and Statement of Operations Information (Notes)
 12 Months Ended
Dec. 31, 2017
Supplemental Balance Sheet and Statement of Operations Information [Abstract]  
Supplemental Consolidated Balance Sheet and Statement of Operations Information Supplemental Consolidated Balance Sheet and Statement of Operations Information
Property and Equipment, net
Property and equipment, net as of December 31, 2017 and 2016 consisted of (in thousands):
As of December 31, 
2017 2016 
Buildings $36,608 $36,603 
Computers, equipment and software 6,277 5,954 
Furniture and fixtures 8,428 8,283 
Vehicles 97 97 
Leasehold improvements 4,669 4,682 
56,079 55,619 
Less: accumulated depreciation and amortization (15,635)(13,029)
$40,444 $42,590 
The following assets included in property and equipment, net were acquired under capital and financing leases (see Note 5) (in thousands):
As of December 31, 
2017 2016 
Buildings $36,608 $36,603 
Computers and equipment 666 1,747 
37,274 38,350 
Less: accumulated amortization (5,891)(5,134)
$31,383 $33,216 
Accrued Expenses and Other Current Liabilities
Accrued expenses and other current liabilities as of December 31, 2017 and 2016 consisted of (in thousands):
As of December 31, 
2017 2016 
Accrued vacation $6,087 $4,368 
Accrued commissions 3,297 2,382 
Accrued bonuses 4,419 8,927 
Estimated health insurance claims 1,090 1,210 
ESPP employee contributions 1,419 — 
Accrued other liabilities 3,900 3,808 
$20,212 $20,695 
Other Income, net
Other income, net for the years ended December 31, 2017, 2016 and 2015 consisted of (in thousands):
For the year ended December 31, 
2017 2016 2015 
Interest income $586 $286 $151 
Recognition of IEDA government grant — — 1,638 
Income from training reimbursement program 1,578 1,141 744 
(Losses) gains on foreign currency transactions (372)67 (293)
Other (9)6 62 
$1,783 $1,500 $2,302