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Prior Periods Financial Statement Revision - Schedule of Revision on Condensed Consolidated Statements of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Accounting Changes And Error Corrections [Line Items] |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expense | $ 23,036 |  | $ 18,347 | $ 20,993 | $ 20,802 | $ 44,530 | $ 41,795 | $ 60,142 | $ 80,229 | $ 51,782 |
Income (loss) from operations | 20,593 |  | 18,727 | 17,302 | 11,784 | 42,751 | 29,086 | 47,813 | 59,437 | 26,760 |
Write-off of unamortized debt issuance costs |  |  |  |  |  | 8,054 |  |  | 2,589 | 19,173 |
Interest expense | 12,409 |  | 15,871 | 16,631 |  | 27,365 | 33,053 | 48,924 |  |  |
Income (loss) before provision (benefit) for income taxes and share of net income from joint venture | (32,201) |  | (3,237) | 1,495 | (3,509) | (24,187) | (2,014) | (5,251) | (6,772) | (23,487) |
Provision (benefit) for income taxes | (9,428) |  | (6,265) | 719 | (751) | (7,128) | (31) | (6,296) | (8,133) | (11,698) |
Net income (loss) | $ (21,529) | $ 7,407 | $ 4,455 | $ 2,119 | $ (1,358) | $ (14,122) | $ 760 | $ 5,215 | $ 7,299 | $ (6,788) | $ 8,217
Basic net income (loss) per share | $ (0.78) |  | $ 0.16 | $ 0.08 | $ (0.05) | $ (0.52) | $ 0.03 | $ 0.19 | $ 0.27 | $ (0.32) |
Diluted net income (loss) per share | $ (0.78) |  | $ 0.16 | $ 0.08 | $ (0.05) | $ (0.52) | $ 0.03 | $ 0.19 | $ 0.27 | $ (0.32) |
As Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Changes And Error Corrections [Line Items] |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expense |  |  | $ 18,347 | $ 21,592 | $ 20,712 |  | $ 42,304 | $ 60,651 | $ 80,266 | $ 51,745 |
Income (loss) from operations |  |  | 18,727 | 16,703 | 11,874 |  | 28,577 | 47,304 | 59,400 | 26,797 |
Write-off of unamortized debt issuance costs |  |  |  |  |  |  |  |  | 3,089 | 18,673 |
Interest expense |  |  | 16,337 | 16,165 |  |  | 32,587 | 48,924 |  |  |
Income (loss) before provision (benefit) for income taxes and share of net income from joint venture |  |  | (3,703) | 1,362 | (3,419) |  | (2,057) | (5,760) | (7,309) | (22,950) |
Provision (benefit) for income taxes |  |  | (6,423) | 674 | (720) |  | (46) | (6,469) | (9,313) | (10,518) |
Net income (loss) |  | $ 7,407 | $ 4,147 | $ 2,031 | $ (1,299) |  | $ 732 | $ 4,879 | $ 7,942 | $ (7,431) | $ 8,217
Basic net income (loss) per share |  |  | $ 0.15 | $ 0.08 | $ (0.05) |  | $ 0.03 | $ 0.18 | $ 0.29 | $ (0.35) |
Diluted net income (loss) per share |  |  | $ 0.15 | $ 0.07 | $ (0.05) |  | $ 0.03 | $ 0.18 | $ 0.29 | $ (0.35) |
Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |
Accounting Changes And Error Corrections [Line Items] |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expense |  |  |  | $ (599) | $ 90 |  | $ (509) | $ (509) | $ (37) | $ 37 |
Income (loss) from operations |  |  |  | 599 | (90) |  | 509 | 509 | 37 | (37) |
Write-off of unamortized debt issuance costs |  |  |  |  |  |  |  |  | (500) | 500 |
Interest expense |  |  | $ (466) | 466 |  |  | 466 |  |  |  |
Income (loss) before provision (benefit) for income taxes and share of net income from joint venture |  |  | 466 | 133 | (90) |  | 43 | 509 | 537 | (537) |
Provision (benefit) for income taxes |  |  | 158 | 45 | (31) |  | 15 | 173 | 1,180 | (1,180) |
Net income (loss) |  |  | $ 308 | $ 88 | $ (59) |  | $ 28 | $ 336 | $ (643) | $ 643 |
Basic net income (loss) per share |  |  | $ 0.01 |  |  |  |  | $ 0.01 | $ (0.02) | $ 0.03 |
Diluted net income (loss) per share |  |  | $ 0.01 | $ 0.01 |  |  |  | $ 0.01 | $ (0.02) | $ 0.03 |

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