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Basis of Presentation and Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Reclassifications to Previously Reported Amounts | The following is a summary of reclassifications to previously reported amounts (in thousands):
|  | Year Ended December 31, 2016 |  | Year Ended December 31, 2015
|  | As previously reported |  | Reclassifications |  | As currently reported |  | As previously reported |  | Reclassifications |  | As currently reported
Consolidated Statements of Operations |  |  |  |  |  |  |  |  |  |  |  |
Cost of revenues, exclusive of depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |
Services |  | $ | 201,316 |  |  | $ | 45,336 |  |  | $ | 246,652 |  |  | $ | 304,473 |  |  | $ | 80,369 |  |  | $ | 384,842 |
Products |  | 59,037 |  |  | 11,579 |  |  | 70,616 |  |  | 113,918 |  |  | 15,830 |  |  | 129,748 |
General and administrative expenses |  | 228,802 |  |  | (56,915 | ) |  | 171,887 |  |  | 270,678 |  |  | (96,199 | ) |  | 174,479 |
The 2017 quarterly revisions will be effected in connection with the 2018 unaudited interim financial statements filings on Form 10-Q.
| Three Months Ended |  | Six Months Ended |  | Nine Months Ended
| March 31, 2017 |  | June 30, 2017 |  | September 30, 2017 |  | June 30, 2017 |  | September 30, 2017
Cost of revenues, exclusive of depreciation and amortization |  |  |  |  |  |  |  |  |
Services, as previously reported | $ | 57,107 |  |  | $ | 60,777 |  |  | $ | 60,981 |  |  | $ | 117,884 |  |  | $ | 178,865 |
Blackhawk adjustment | (5,424 | ) |  | (5,460 | ) |  | (5,480 | ) |  | (10,884 | ) |  | (16,364 | )
Services, as revised | 51,683 |  |  | 55,317 |  |  | 55,501 |  |  | 107,000 |  |  | 162,501 |
Products, as previously reported | $ | 16,845 |  |  | $ | 17,567 |  |  | $ | 10,750 |  |  | $ | 34,412 |  |  | $ | 45,162 |
Blackhawk adjustment | 5,424 |  |  | 5,460 |  |  | 5,480 |  |  | 10,884 |  |  | 16,364 |
Products, as revised | 22,269 |  |  | 23,027 |  |  | 16,230 |  |  | 45,296 |  |  | 61,526 |
Schedule of Finite-Lived Intangible Assets | The following table provides information related to our intangible assets as of December 31, 2017 and 2016 (in thousands):
| December 31, 2017 |  | December 31, 2016
| Gross Carrying Amount |  | Accumulated Amortization |  | Total |  | Gross Carrying Amount |  | Accumulated Amortization |  | Total
Customer relationships | $ | 39,050 |  |  | $ | (17,577 | ) |  | $ | 21,473 |  |  | $ | 38,681 |  |  | $ | (11,452 | ) |  | $ | 27,229 |
Trade name | 11,407 |  |  | (6,494 | ) |  | 4,913 |  |  | 11,733 |  |  | (3,648 | ) |  | 8,085 |
Intellectual property | 9,892 |  |  | (2,463 | ) |  | 7,429 |  |  | 9,748 |  |  | (379 | ) |  | 9,369 |
Non-compete agreement | 1,160 |  |  | (1,080 | ) |  | 80 |  |  | 1,160 |  |  | (760 | ) |  | 400 |
Total intangible assets | $ | 61,509 |  |  | $ | (27,614 | ) |  | $ | 33,895 |  |  | $ | 61,322 |  |  | $ | (16,239 | ) |  | $ | 45,083 |
Finite-lived Intangible Assets Amortization Expense | As of December 31, 2017, estimated amortization expense for the intangible assets for each of the next five years was as follows (in thousands):
Period | Amount
2018 | $ | 10,698 |
2019 | 10,111 |
2020 | 6,920 |
2021 | 5,503 |
2022 | 118 |
Thereafter | 545 |
Total | $ | 33,895 |

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