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Acquisition Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) | Feb. 23, 2016 | Jan. 31, 2017 | Jul. 31, 2016
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill |  |  | $ 290,633,000 | $ 287,618,000
TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Allocation of aggregate purchase price |  | $ 340,432,000 |  |
Customer relationships and backlog | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life (in years) |  | 21 years |  |
Minimum | Trade names | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life (in years) |  | 10 years |  |
Minimum | Technology | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life (in years) |  | 5 years |  |
Maximum | Trade names | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life (in years) |  | 20 years |  |
Maximum | Technology | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life (in years) |  | 15 years |  |
Purchase Price Allocation | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Shares of TCS common stock purchased | [1] | $ 318,605,000 |  |
Stock-based awards settled | [1] | 21,827,000 |  |
Allocation of aggregate purchase price | [1] | 340,432,000 |  |
Cash and cash equivalents | [1] | 59,897,000 |  |
Current assets | [1] | 115,996,000 |  |
Deferred tax assets, net, non-current | [1] | 83,431,000 |  |
Property, plant and equipment | [1] | 25,689,000 |  |
Other assets, non-current | [1] | 2,641,000 |  |
Current liabilities (excluding interest accrued on debt) | [1] | (119,756,000) |  |
Debt (including interest accrued) | [1] | (134,101,000) |  |
Capital lease obligations | [1] | (8,993,000) |  |
Other liabilities | [1] | (9,156,000) |  |
Net tangible assets at fair value | [1] | 15,648,000 |  |
Deferred tax liabilities | [1] | (104,371,000) |  |
Goodwill | [1] | 151,055,000 |  |
Allocation of aggregate purchase price | [1] | 340,432,000 |  |
Purchase Price Allocation | Customer relationships and backlog | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets | [1] | 223,100,000 |  |
Purchase Price Allocation | Trade names | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets | [1] | 20,000,000 |  |
Purchase Price Allocation | Technology | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets | [1] | 35,000,000 |  |
Measurement Period Adjustments | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Current assets | [2] | (83,000) |  |
Deferred tax assets, net, non-current | [2] | 2,059,000 |  |
Property, plant and equipment | [2] | 0 |  |
Current liabilities (excluding interest accrued on debt) |  | (4,200,000) |  |
Net tangible assets at fair value | [2] | (2,224,000) |  |
Goodwill | [2] | 2,224,000 |  |
Purchase Price Allocation (as adjusted) | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Shares of TCS common stock purchased |  | 318,605,000 |  |
Stock-based awards settled |  | 21,827,000 |  |
Allocation of aggregate purchase price |  | 340,432,000 |  |
Cash and cash equivalents |  | 59,897,000 |  |
Current assets |  | 115,913,000 |  |
Deferred tax assets, net, non-current |  | 85,490,000 |  |
Property, plant and equipment |  | 25,689,000 |  |
Other assets, non-current |  | 2,641,000 |  |
Current liabilities (excluding interest accrued on debt) |  | (123,956,000) |  |
Debt (including interest accrued) |  | (134,101,000) |  |
Capital lease obligations |  | (8,993,000) |  |
Other liabilities |  | (9,156,000) |  |
Net tangible assets at fair value |  | 13,424,000 |  |
Deferred tax liabilities |  | (104,371,000) |  |
Goodwill |  | 153,279,000 |  |
Allocation of aggregate purchase price |  | 340,432,000 |  |
Purchase Price Allocation (as adjusted) | Customer relationships and backlog | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  | 223,100,000 |  |
Purchase Price Allocation (as adjusted) | Trade names | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  | 20,000,000 |  |
Purchase Price Allocation (as adjusted) | Technology | TeleCommunication Systems Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  | $ 35,000,000 |  |
[1] | As reported in the Company's Quarterly Report on Form 10-Q for the three months ended October 31, 2016.
[2] | Principally relates to the finalization of: (i) the estimated fair value of TCS's 911 call handling software warranty obligations; (ii) TCS's income tax returns for the pre-acquisition period which began January 1, 2016 and ended February 23, 2016; and (iii) the related adjustments to deferred income taxes. These measurement period adjustments were recorded to reflect final determinations of estimated fair values of the assets acquired and the liabilities assumed in connection with the TCS acquisition based on facts and circumstances that existed as of the acquisition date.

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