Organization and Operations (Policies)	3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations. In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under previous guidance, Step 2 of the goodwill impairment test required entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value was recognized as goodwill impairment. Under the new guidance, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The guidance was adopted effective January 1, 2020 and did not have a material impact on the consolidated financial statements. In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments. The guidance establishes a new forward-looking "expected loss model" that requires entities to estimate current expected credit losses on accounts receivable and financial instruments by using all practical and relevant information. The guidance was adopted effective January 1, 2020 and did not have a material impact on the consolidated financial statements. In December 2019, the FASB issued guidance simplifying the accounting for incomes taxes by removing (i) the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items, (ii) the exception to recognize a deferred tax liability for equity method investments when a foreign subsidiary becomes an equity method investment, and (iii) the exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The guidance also improves consistent application of and simplifies GAAP for other areas of Topic 740, Income Taxes. The guidance was adopted effective January 1, 2020, using a prospective approach and did not have a material impact on the consolidated financial statements.
Revenue	Revenues Disaggregation of Revenue The Company provides disaggregation of revenue based on geographic region (Note 13) and based on the subscription versus professional services and other classification on the consolidated statements of operations as it believes these best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. Deferred Revenue and Deferred Commission Expense Amounts that have been invoiced are recorded in accounts receivable and deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Deferred revenue represents amounts billed for which revenue has not yet been recognized. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current deferred revenue, and the remaining portion is recorded as long-term deferred revenue. Deferred revenue during the three months ended March 31, 2020 increased by $8.2 million resulting from $207.2 million of additional invoicing and was offset by revenue recognized of $199.0 million during the same period. $120.9 million of revenue was recognized during the three month period ended March 31, 2020 that was included in deferred revenue at the beginning of the period. As of March 31, 2020, approximately $183.7 million of revenue is expected to be recognized from remaining performance obligations for contracts with original performance obligations that exceed one year. The Company expects to recognize revenue on approximately 94% of these remaining performance obligations over the next 24 months, with the balance recognized thereafter. Additional contract liabilities of $1.4 million were included in accrued expenses and other current liabilities on the consolidated balance sheet as of March 31, 2020 and December 31, 2019. The incremental direct costs of obtaining a contract, which primarily consist of sales commissions paid for new subscription contracts, are deferred and amortized on a straight-line basis over a period of approximately one to three years. The one to three-year period has been determined by taking into consideration the type of product sold, the commitment term of the customer contract, the nature of the Company’s technology development life-cycle, and an estimated customer relationship period. Sales commissions for upgrade contracts are deferred and amortized on a straight-line basis over the remaining estimated customer relationship period of the related customer. Deferred commission expense that will be recorded as expense during the succeeding 12-month period is recorded as current deferred commission expense, and the remaining portion is recorded as long-term deferred commission expense. Deferred commission expense during the three months ended March 31, 2020 increased by $0.8 million as a result of deferring incremental costs of obtaining a contract of $11.5 million and was offset by amortization of $10.7 million during the same period.

Organization and Operations (Policies)

3 Months Ended

Mar. 31, 2020

Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations.

In January 2017, the Financial Accounting Standards Board (“FASB”) issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under previous guidance, Step 2 of the goodwill impairment test required entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value was recognized as goodwill impairment. Under the new guidance, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The guidance was adopted effective January 1, 2020 and did not have a material impact on the consolidated financial statements.

In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments. The guidance establishes a new forward-looking "expected loss model" that requires entities to estimate current expected credit losses on accounts receivable and financial instruments by using all practical and relevant information. The guidance was adopted effective January 1, 2020 and did not have a material impact on the consolidated financial statements.

In December 2019, the FASB issued guidance simplifying the accounting for incomes taxes by removing (i) the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items, (ii) the exception to recognize a deferred tax liability for equity method investments when a foreign subsidiary becomes an equity method investment, and (iii) the exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The guidance also improves consistent application of and simplifies GAAP for other areas of Topic 740, Income Taxes. The guidance was adopted effective January 1, 2020, using a prospective approach and did not have a material impact on the consolidated financial statements.

Revenue

Revenues

Disaggregation of Revenue

The Company provides disaggregation of revenue based on geographic region (Note 13) and based on the subscription versus professional services and other classification on the consolidated statements of operations as it believes these best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.

Deferred Revenue and Deferred Commission Expense

Amounts that have been invoiced are recorded in accounts receivable and deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Deferred revenue represents amounts billed for which revenue has not yet been recognized. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current deferred revenue, and the remaining portion is recorded as long-term deferred revenue. Deferred revenue during the three months ended March 31, 2020 increased by $8.2 million resulting from $207.2 million of additional invoicing and was offset by revenue recognized of $199.0 million during the same period. $120.9 million of revenue was recognized during the three month period ended March 31, 2020 that was included in deferred revenue at the beginning of the period. As of March 31, 2020, approximately $183.7 million of revenue is expected to be recognized from remaining performance obligations for contracts with original performance obligations that exceed one year. The Company expects to recognize revenue on approximately 94% of these remaining performance obligations over the next 24 months, with the balance recognized thereafter.

Additional contract liabilities of $1.4 million were included in accrued expenses and other current liabilities on the consolidated balance sheet as of March 31, 2020 and December 31, 2019.

The incremental direct costs of obtaining a contract, which primarily consist of sales commissions paid for new subscription contracts, are deferred and amortized on a straight-line basis over a period of approximately one to three years. The one to three-year period has been determined by taking into consideration the type of product sold, the commitment term of the customer contract, the nature of the Company’s technology development life-cycle, and an estimated customer relationship period. Sales commissions for upgrade contracts are deferred and amortized on a straight-line basis over the remaining estimated customer relationship period of the related customer. Deferred commission expense that will be recorded as expense during the succeeding 12-month period is recorded as current deferred commission expense, and the remaining portion is recorded as long-term deferred commission expense.

Deferred commission expense during the three months ended March 31, 2020 increased by $0.8 million as a result of deferring incremental costs of obtaining a contract of $11.5 million and was offset by amortization of $10.7 million during the same period.