| Organization, Consolidation and Presentation of Financial Statements [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
|---|
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Prepaid expenses and other current assets | Prepaid expenses and other current assets | | | | | | | | | | As of | | December 31, 2016 | | December 31, 2015 | (Amounts in thousands) | | Prepaid expenses | $ | 39,895 |
| | $ | 30,985 |
| Income tax refunds receivable | — |
| | 204 |
| Inventories | 18,451 |
| | 14,776 |
| Work-in-process inventory, net | 164 |
| | 1,733 |
| Joint venture receivables | 84 |
| | 460 |
| Other current assets | 7,100 |
| | 7,525 |
| Total prepaid expenses and other current assets | $ | 65,694 |
| | $ | 55,683 |
|
|
Property and equipment, net | Property and equipment, net | | | | | | | | | | As of | | December 31, 2016 | | December 31, 2015 | (Amounts in thousands) | | Aircraft | $ | 2,997 |
| | $ | 1,723 |
| Computers and related equipment | 7,161 |
| | 6,390 |
| Leasehold improvements | 20,934 |
| | 18,847 |
| Office furniture and fixtures | 5,499 |
| | 5,335 |
| Vehicles | 3,430 |
| | 3,260 |
| Gross property and equipment | 40,021 |
| | 35,555 |
| Less accumulated depreciation | (23,385 | ) | | (19,861 | ) | Total property and equipment, net | $ | 16,636 |
| | $ | 15,694 |
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|
Other assets, net | Other assets, net | | | | | | | | | | As of | | December 31, 2016 | | December 31, 2015 | (Amounts in thousands) | | Investment in affiliates | $ | 7,825 |
| | $ | 6,712 |
| Palm promissory notes, long-term portion | 2,034 |
| | 2,079 |
| Other | 3,513 |
| | 3,536 |
| Total other assets, net | $ | 13,372 |
| | $ | 12,327 |
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|
Accrued payroll and employee costs | Accrued payroll and employee costs | | | | | | | | | | As of | | December 31, 2016 | | December 31, 2015 | (Amounts in thousands) | | Wages, compensation and other benefits | $ | 82,062 |
| | $ | 85,216 |
| Accrued vacation | 12,462 |
| | 14,433 |
| Accrued contributions to employee benefit plans | 1,056 |
| | 1,032 |
| Total accrued payroll and employee costs | $ | 95,580 |
| | $ | 100,681 |
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|
Accrued liabilities | Accrued liabilities | | | | | | | | | | As of | | December 31, 2016 | | December 31, 2015 | (Amounts in thousands) | | Customer liability | $ | 20,762 |
| | $ | 21,183 |
| Accrued insurance | 26,201 |
| | 35,530 |
| Accrued interest | 25,807 |
| | 24,370 |
| Contract losses | 10,912 |
| | 15,718 |
| Legal reserves | 4,597 |
| | 5,063 |
| Subcontractor retention | 250 |
| | 1,646 |
| Other | 15,549 |
| | 11,208 |
| Total accrued liabilities | $ | 104,078 |
| | $ | 114,718 |
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