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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]  
Schedule of Rollforward of Warranty Accrual
The following is a rollforward of our warranty accrual (in thousands):
Balance at December 31, 2017
$
293

Provision
72

Usage
(114
)
Balance at March 31, 2018
$
251
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
The cumulative effect of the changes made to our condensed consolidated balance sheet for the adoption of ASC 606 was as follows (in thousands):
 
As Reported
Adjustment due to ASC 606
 
 
December 31, 2017
January 1, 2018
ASSETS
 
 
 
Accounts receivable, net
$
31,625

$
4,553

$
36,178

Prepaid expenses and other current assets
7,609

1,895

9,504

Deferred cost of revenues
31,410

(139
)
31,271

Other assets
5,911

379

6,290

LIABILITIES AND STOCKHOLDERS’ EQUITY
 
 
 
Noncontrolling interests subject to put provisions
(165
)
51

(114
)
Accumulated deficit
(421,593
)
6,070

(415,523
)
Noncontrolling interests not subject to put provisions
(12
)
567

555

In accordance with the new revenue standard requirements, the disclosure of the impact of adoption on our condensed consolidated statement of comprehensive loss for the three months ended March 31, 2018 was as follows (in thousands):
 
Three Months Ended March 31, 2018
 
As Reported
Balance without adoption of ASC 606
Effect of Change
Revenue
$
107,298

$
108,434

$
(1,136
)
Cost of revenues
61,133

61,194

(61
)
Selling and marketing
18,055

18,155

(100
)
In accordance with the new revenue standard requirements, the disclosure of the impact of adoption on our condensed consolidated balance sheet at March 31, 2018 was as follows (in thousands):
 
March 31, 2018
ASSETS
As Reported
Balance without adoption of ASC 606
Effect of Change
Accounts receivable, net
$
38,689

$
35,288

$
3,401

Prepaid expenses and other current assets
9,795

7,801

1,994

Deferred cost of revenues
31,568

31,645

(77
)
Other assets
6,360

5,981

379

LIABILITIES AND STOCKHOLDERS’ EQUITY
 
 
 
Noncontrolling interests subject to put provisions
$
(171
)
$
(171
)
$
—

Accumulated deficit
(416,982
)
(422,699
)
5,717

Noncontrolling interests not subject to put provisions
273

295

(22
)
Accumulated other comprehensive loss
(2,514
)
(2,516
)
2