Business Combinations	12 Months Ended
Dec. 31, 2019
Business Combinations [Abstract]
Business Combinations	Business Combinations 2019 Business Combination During the year ended December 31, 2019, we completed a business combination for a purchase price of $7.5 million in cash. In allocating the purchase price based on the estimated fair values, we recorded a total of $3.0 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $2.5 million of backlog intangible assets (to be recognized over estimated life of two years), $1.4 million of deferred tax liabilities and $2.2 million of goodwill which is not deductible for income tax purposes. 2018 Business Combinations During the year ended December 31, 2018, we completed four business combinations for an aggregate purchase price of $37.6 million in cash. In allocating the aggregate purchase price based on the estimated fair values, we recorded a total of $13.5 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $2.2 million of deferred tax liabilities and $26.1 million of goodwill, of which $8.0 million of the goodwill amount is deductible for income tax purposes. 2017 Business Combinations SkyGiraffe On October 31, 2017, we completed the acquisition of a privately-held company, SkyGiraffe Ltd. (SkyGiraffe), by acquiring all issued and outstanding common shares of SkyGiraffe for approximately $32.3 million in an all-cash transaction to enhance the consumer product-like mobile experience of our solutions. In allocating the aggregate purchase price based on the estimated fair values, we recorded $15.6 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $3.3 million of deferred tax liabilities and $19.4 million of goodwill which is not deductible for income tax purposes. Other 2017 Business Combinations We also completed three other business combinations for an aggregate purchase price of approximately $26.6 million in cash. In allocating the aggregate purchase price based on the estimated fair values, we recorded $9.9 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $3.6 million of deferred tax liabilities and a total of $20.3 million of goodwill, of which $4.1 million of the goodwill amount is deductible for income tax purposes. For all of our 2019, 2018 and 2017 business combinations, the excess of purchase consideration over the fair value of net tangible and identifiable intangible assets acquired was recorded as goodwill. We believe the goodwill represents the synergies expected from expanded market opportunities when integrating the acquired technologies with our offerings. Aggregate acquisition-related costs associated with our business combinations are not material for each of the years presented and are included in general and administrative expenses in our consolidated statement of comprehensive income (loss). The results of operations of all of our business combinations have been included in our consolidated financial statements from their respective dates of purchase. These business combinations did not have a material impact on our consolidated financial statements, and therefore historical and pro forma disclosures have not been presented.

During the year ended December 31, 2019, we completed a business combination for a purchase price of $7.5 million in cash. In allocating the purchase price based on the estimated fair values, we recorded a total of $3.0 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $2.5 million of backlog intangible assets (to be recognized over estimated life of two years), $1.4 million of deferred tax liabilities and $2.2 million of goodwill which is not deductible for income tax purposes.

During the year ended December 31, 2018, we completed four business combinations for an aggregate purchase price of $37.6 million in cash. In allocating the aggregate purchase price based on the estimated fair values, we recorded a total of $13.5 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $2.2 million of deferred tax liabilities and $26.1 million of goodwill, of which $8.0 million of the goodwill amount is deductible for income tax purposes.

On October 31, 2017, we completed the acquisition of a privately-held company, SkyGiraffe Ltd. (SkyGiraffe), by acquiring all issued and outstanding common shares of SkyGiraffe for approximately $32.3 million in an all-cash transaction to enhance the consumer product-like mobile experience of our solutions. In allocating the aggregate purchase price based on the estimated fair values, we recorded $15.6 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $3.3 million of deferred tax liabilities and $19.4 million of goodwill which is not deductible for income tax purposes.

We also completed three other business combinations for an aggregate purchase price of approximately $26.6 million in cash. In allocating the aggregate purchase price based on the estimated fair values, we recorded $9.9 million of developed technology intangible assets (to be amortized over estimated useful lives of five years), $3.6 million of deferred tax liabilities and a total of $20.3 million of goodwill, of which $4.1 million of the goodwill amount is deductible for income tax purposes.