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Acquisitions - Narratives (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2017 USD ($) | Jul. 30, 2016 USD ($) | May 31, 2016 USD ($) | Aug. 31, 2015 USD ($) | Jun. 30, 2015 USD ($) | Apr. 29, 2015 USD ($) | Jan. 24, 2015 USD ($) | Sep. 30, 2014 USD ($) | Jan. 24, 2015 business | Jul. 29, 2017 USD ($) | Jul. 30, 2016 USD ($) | Jul. 25, 2015 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire business |  |  |  |  |  |  |  |  |  | $ 26,070 | $ 157,183 | $ 31,909
Purchase price allocation adjustments |  |  |  |  |  |  |  |  |  | 1,504 | 101 |
Proceeds from acquisition working capital adjustment |  |  |  |  |  |  |  |  |  | 1,825 | $ 0 | $ 0
Texstar Enterprises, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired | $ 26,100 |  |  |  |  |  |  |  |  |  |  |
TelCom Construction, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  | $ 48,800 |  |  |  |  |  |  |  |
NextGen Telecom Services Group, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  | $ 5,600 |  |  |  |  |  |  |  |  |
Goodman Networks, Inc. Wireline Operations |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire business |  | $ 100,900 |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  |  |  |  | 10,000 |  |
Funds released from escrow |  |  |  |  |  |  |  |  |  | 2,500 |  |
Goodman Networks, Inc. Wireline Operations | Fair Value, Measurements, Nonrecurring |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation adjustments |  |  |  |  |  |  |  |  |  | 1,500 |  |
Hewitt Power & Communications, Inc |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  |  |  |  |  | $ 8,000 |  |  |  |
Series of Individually Immaterial Business Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  |  |  |  | $ 1,500 |  |  |  |  |
Number of Businesses Acquired | business |  |  |  |  |  |  |  |  | 2 |  |  |
Moll's Utility Services, LLC |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  |  |  | $ 6,500 |  |  |  |  |  |
Venture Communications Group, LLC |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  |  | $ 15,600 |  |  |  |  |  |  |
Working Capital Adjustment | Goodman Networks, Inc. Wireline Operations |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Working capital adjustment |  | $ 6,600 |  |  |  |  |  |  |  |  |  |
Indemnification Portion Subject to Certain Conditions, Not Less Than Twelve Months | Goodman Networks, Inc. Wireline Operations |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  |  |  |  | 22,500 |  |
Indemnification Portion Subject to Seller Satisfaction of Certain Liabilities | Goodman Networks, Inc. Wireline Operations |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Escrow deposit |  |  |  |  |  |  |  |  |  | $ 10,000 |  |

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