v3.7.0.1

Condensed Consolidating Financial Information - Guarantor Subsidiaries - Condensed Consolidating Statements of Operations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating revenues, net | $ 146,424 | $ 167,136 | $ 281,042 | $ 331,152
Expenses: |  |  |  |
Direct expenses | 126,951 | 152,417 | 263,464 | 304,971
Selling, general and administrative expenses | 14,247 | 11,778 | 27,290 | 23,451
Total operating expenses | 141,198 | 164,195 | 290,754 | 328,422
Loss (gain) on disposal of assets | 7 | (4,298) | 7 | (3,939)
Equity in loss of unconsolidated affiliate, net | 991 | 76 | 1,994 | 76
Operating (loss) income | 4,228 | 7,163 | (11,713) | 6,593
Equity in net income of consolidated subsidiaries |  |  |  | 0
Interest expense | 8,083 | 7,540 | 16,278 | 15,073
Other income, net | (705) | (494) | (1,768) | (1,109)
Total expenses | 7,378 | 7,046 | 14,510 | 13,964
(Loss) earnings before income taxes | (3,150) | 117 | (26,223) | (7,371)
Income tax expense (benefit) | 123 | (4,160) | (7,702) | (2,716)
Net (loss) earnings | (3,273) | 4,277 | (18,521) | (4,655)
Eliminations [Member] |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating revenues, net | (2,819) |  | (2,819) |
Expenses: |  |  |  |
Direct expenses | (2,819) |  | (2,819) |
Selling, general and administrative expenses | (4) | (325) | (9) | (498)
Total operating expenses | (2,823) | (325) | (2,828) | (498)
Equity in loss of unconsolidated affiliate, net |  | 0 |  | 0
Operating (loss) income | 4 | 325 | 9 | 498
Equity in net income of consolidated subsidiaries | 14,613 | 7,035 | 17,243 | 12,090
Interest expense |  |  |  | 0
Other income, net | 4 | 325 | 9 | 498
Total expenses | 14,617 | 7,360 | 17,252 | 12,588
(Loss) earnings before income taxes | (14,613) | (7,035) | (17,243) | (12,090)
Income tax expense (benefit) |  |  |  | 0
Net (loss) earnings | (14,613) | (7,035) | (17,243) | (12,090)
Parent Company Only (issuer) [Member] |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating revenues, net | 75,045 | 89,365 | 149,329 | 181,234
Expenses: |  |  |  |
Direct expenses | 72,598 | 89,535 | 154,942 | 181,572
Selling, general and administrative expenses | 10,916 | 9,232 | 21,024 | 18,275
Total operating expenses | 83,514 | 98,767 | 175,966 | 199,847
Loss (gain) on disposal of assets | 8 | (4,298) | 8 | (3,939)
Equity in loss of unconsolidated affiliate, net | (75) | 76 | 928 | 76
Operating (loss) income | (8,402) | (5,180) | (27,573) | (14,750)
Equity in net income of consolidated subsidiaries | (14,613) | (7,035) | (17,243) | (12,090)
Interest expense | 8,082 | 7,534 | 16,256 | 15,047
Other income, net | (708) | (819) | (1,776) | (1,603)
Total expenses | (7,239) | (320) | (2,763) | 1,354
(Loss) earnings before income taxes | (1,163) | (4,860) | (24,810) | (16,104)
Income tax expense (benefit) | 2,110 | (9,137) | (6,289) | (11,449)
Net (loss) earnings | (3,273) | 4,277 | (18,521) | (4,655)
Guarantor Subsidiaries [Member] |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating revenues, net | 68,857 | 77,771 | 126,330 | 149,918
Expenses: |  |  |  |
Direct expenses | 51,806 | 62,882 | 104,187 | 123,399
Selling, general and administrative expenses | 3,269 | 2,871 | 6,155 | 5,674
Total operating expenses | 55,075 | 65,753 | 110,342 | 129,073
Loss (gain) on disposal of assets | (1) |  | (1) |
Equity in loss of unconsolidated affiliate, net |  | 0 |  | 0
Operating (loss) income | 13,783 | 12,018 | 15,989 | 20,845
Interest expense | 1 | 6 | 22 | 26
Other income, net | (1) | 0 | (1) | (4)
Total expenses | 0 | 6 | 21 | 22
(Loss) earnings before income taxes | 13,783 | 12,012 | 15,968 | 20,823
Income tax expense (benefit) | (1,987) | 4,977 | (1,413) | 8,733
Net (loss) earnings | 15,770 | $ 7,035 | 17,381 | $ 12,090
Non-Guarantor Subsidiaries [Member] |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating revenues, net | 5,341 |  | 8,202 |
Expenses: |  |  |  |
Direct expenses | 5,366 |  | 7,154 |
Selling, general and administrative expenses | 66 |  | 120 |
Total operating expenses | 5,432 |  | 7,274 |
Loss (gain) on disposal of assets | 0 |  | 0 |
Equity in loss of unconsolidated affiliate, net | 1,066 |  | 1,066 |
Operating (loss) income | (1,157) |  | (138) |
Interest expense | 0 |  | 0 |
Other income, net | 0 |  | 0 |
Total expenses | 0 |  | 0 |
(Loss) earnings before income taxes | (1,157) |  | (138) |
Income tax expense (benefit) | 0 |  |  |
Net (loss) earnings | $ (1,157) |  | $ (138) |

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