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Interim Consolidated Financial Statements - Summary of Effect of Adopting ASC 606 In Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Accounts receivable, net | $ 62,154 | $ 70,023
Deferred commissions | 14,722 | 13,731
Prepaid expenses and other current assets | 18,641 | 18,942
Total current assets | 231,848 | 236,819
Other assets | 6,942 | 6,231
Total assets | 340,736 | 345,200
Deferred revenue | 155,425 | 145,207
Total current liabilities | 191,038 | 195,053
Total liabilities | 199,441 | 204,011
Retained earnings | 121,495 | 123,010
Total stockholders’ equity | 141,295 | 141,189
Total liabilities and stockholders’ equity | 340,736 | $ 345,200
ASC 606 [Member] | Amounts as if Previous Guidance in Effect [Member] |  |
Accounts receivable, net | 67,826 |
Deferred commissions | 13,791 |
Prepaid expenses and other current assets | 23,427 |
Total current assets | 241,375 |
Other assets | 6,380 |
Total assets | 349,702 |
Deferred revenue | 166,669 |
Total current liabilities | 202,282 |
Total liabilities | 210,685 |
Retained earnings | 119,217 |
Total stockholders’ equity | 139,017 |
Total liabilities and stockholders’ equity | $ 349,702 |

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