101 - Document - Document and Entity Information
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103 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
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104 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
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105 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
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106 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME
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107 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
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108 - Disclosure - BASIS OF PRESENTATION
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109 - Disclosure - NEW ACCOUNTING PRONOUNCEMENTS
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110 - Disclosure - MARKETABLE SECURITIES
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111 - Disclosure - RECEIVABLES, CONTRACT ASSETS, AND DEFERRED REVENUE
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112 - Disclosure - DEFERRED CONTRACT COSTS
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113 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS
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114 - Disclosure - ACCRUED EXPENSES
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115 - Disclosure - FAIR VALUE MEASUREMENTS
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116 - Disclosure - REVENUE
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117 - Disclosure - STOCK-BASED COMPENSATION
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118 - Disclosure - INCOME TAXES
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119 - Disclosure - EARNINGS PER SHARE
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120 - Disclosure - Accounting Policies (Policies)
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121 - Disclosure - NEW ACCOUNTING PRONOUNCEMENTS (Tables)
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122 - Disclosure - MARKETABLE SECURITIES (Tables)
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123 - Disclosure - RECEIVABLES, CONTRACT ASSETS, AND DEFERRED REVENUE (Tables)
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124 - Disclosure - DEFERRED CONTRACT COSTS (Tables)
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125 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
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126 - Disclosure - ACCRUED EXPENSES (Tables)
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127 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)
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128 - Disclosure - REVENUE (Tables)
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129 - Disclosure - STOCK-BASED COMPENSATION (Tables)
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130 - Disclosure - INCOME TAXES (Tables)
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131 - Disclosure - EARNINGS PER SHARE (Tables)
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132 - Disclosure - Summary of Impact of Adoption of ASU 606 (Detail)
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133 - Disclosure - Schedule of Marketable Securities (Detail)
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135 - Disclosure - Summary of Receivable (Detail)
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136 - Disclosure - Summary of Unbilled Receivables (Detail)
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137 - Disclosure - Summary of Contract Assets and Deferred Revenue (Detail)
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138 - Disclosure - Receivables, Contract Assets, and Deferred Revenue - Additional Information (Detail)
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139 - Disclosure - Deferred Contract Costs - Additional Information (Detail)
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140 - Disclosure - Schedule of Impairment of Deferred Contract Costs (Detail)
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141 - Disclosure - Schedule of Amortization of Deferred Contract Costs (Detail)
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142 - Disclosure - Change in Carrying Amount of Goodwill (Detail)
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143 - Disclosure - Schedule of Amortizable Intangible Assets (Detail)
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144 - Disclosure - Amortization of Intangible Assets (Detail)
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145 - Disclosure - Schedule of Accrued Expenses (Detail)
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146 - Disclosure - Fair Value Measurements - Additional Information (Detail)
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147 - Disclosure - Assets and Liabilities Measured at Fair Value (Detail)
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148 - Disclosure - Revenue - Additional Information (Detail)
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149 - Disclosure - Disaggregation of Revenue (Detail)
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150 - Disclosure - Revenue for Remaining Performance Obligations Expected to be Recognized (Detail)
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151 - Disclosure - Total Revenue of Major Clients (Detail)
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152 - Disclosure - Total Revenue of Major Clients (Parenthetical) (Detail)
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153 - Disclosure - Summary of Stock Based Compensation Expense (Detail)
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154 - Disclosure - Stock-Based Compensation - Additional Information (Detail)
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155 - Disclosure - Stock-based compensation - Summary of stock based compensation award granted (Detail)
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156 - Disclosure - Stock-based compensation - Summary of stock based compensation award granted (Parenthetical) (Detail)
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157 - Disclosure - Summary of Benefit from Income Taxes and Discrete Tax Items (Detail)
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158 - Disclosure - Income Tax - Additional Information (Detail)
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159 - Disclosure - Summary of Basic and Diluted Earnings Per Share (Detail)
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