Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Acquired Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | $ 84,254 | $ 106,754 |
Accumulated Amortization | (35,310) | (39,870) |
Net Carrying Amount | 48,944 | 66,884 |
Customer Relationships | ||
Acquired Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 28,000 | 28,000 |
Accumulated Amortization | (19,710) | (10,719) |
Net Carrying Amount | 8,290 | 17,281 |
Developed Technology | ||
Acquired Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 55,772 | 55,772 |
Accumulated Amortization | (15,386) | (6,533) |
Net Carrying Amount | 40,386 | 49,239 |
Favorable Drilling Contracts | ||
Acquired Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 22,500 | |
Accumulated Amortization | (22,500) | |
Internal Use Software | ||
Acquired Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 482 | 482 |
Accumulated Amortization | (214) | (118) |
Net Carrying Amount | $ 268 | $ 364 |