Business Combinations - Summary of Estimated Fair Values and Useful Lives of Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands |
12 Months Ended |
|
Dec. 31, 2015 |
Oct. 31, 2015 |
| Developed Technology [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Preliminary estimated useful life |
5 years 10 months 24 days
|
|
| Customer Relationships [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Preliminary estimated useful life |
6 years 8 months 12 days
|
|
| Non-compete Agreements [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Preliminary estimated useful life |
4 years 9 months 18 days
|
|
| Logentries [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 9,425
|
$ 9,425
|
| Logentries [Member] | Developed Technology [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 8,300
|
|
| Preliminary estimated useful life |
6 years
|
|
| Logentries [Member] | Customer Relationships [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 900
|
|
| Preliminary estimated useful life |
7 years
|
|
| Logentries [Member] | Trade Name [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 225
|
|
| Preliminary estimated useful life |
1 year
|
|
| NT OBJECTives, Inc. [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 2,090
|
|
| NT OBJECTives, Inc. [Member] | Developed Technology [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 1,950
|
|
| Preliminary estimated useful life |
6 years
|
|
| NT OBJECTives, Inc. [Member] | Customer Relationships [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 100
|
|
| Preliminary estimated useful life |
4 years
|
|
| NT OBJECTives, Inc. [Member] | Non-compete Agreements [Member] |
|
|
| Finite-Lived Intangible Assets [Line Items] |
|
|
| Identifiable intangible assets |
$ 40
|
|
| Preliminary estimated useful life |
2 years
|
|