GUARANTORS OF SECURITIES (Condensed Balance Sheet) (Details) - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
Jun. 30, 2017 |
Dec. 31, 2016 |
Current assets: |
|
|
|
|
Cash and cash equivalents |
$ 15,057
|
$ 13,583
|
$ 28,878
|
$ 26,950
|
Receivables: |
|
|
|
|
Trade, operating, net of allowance for doubtful accounts of $903 |
35,346
|
33,840
|
|
|
Trade, dry-leasing |
3,940
|
5,124
|
|
|
Tax receivables |
3,206
|
2,829
|
|
|
Other |
1,451
|
1,623
|
|
|
Inventories, net |
20,864
|
21,112
|
|
|
Prepaid expenses |
2,548
|
1,203
|
|
|
Escrow deposits |
0
|
3,250
|
|
|
Total current assets |
82,412
|
82,564
|
|
|
Property and equipment |
923,249
|
972,942
|
|
|
Accumulated depreciation |
(305,745)
|
(299,028)
|
|
|
Property and equipment, net |
617,504
|
673,914
|
|
|
Equity investments and advances |
30,982
|
30,056
|
|
|
Investments in consolidated subsidiaries |
0
|
0
|
|
|
Intangible assets |
1,115
|
1,122
|
|
|
Deferred income taxes |
0
|
0
|
|
|
Intercompany receivables |
0
|
0
|
|
|
Other assets |
18,680
|
4,441
|
|
|
Total assets |
750,693
|
792,097
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued expenses |
17,246
|
16,421
|
|
|
Accrued wages and benefits |
7,516
|
8,264
|
|
|
Accrued interest |
545
|
606
|
|
|
Accrued income taxes |
40
|
28
|
|
|
Accrued other taxes |
1,965
|
1,810
|
|
|
Accrued contingencies |
946
|
859
|
|
|
Current portion of long-term debt |
2,257
|
2,736
|
|
|
Other current liabilities |
3,224
|
1,720
|
|
|
Total current liabilities |
33,739
|
32,444
|
|
|
Long-term debt (including $49 and $1,903 from VIEs in 2018 and 2017, respectively) |
172,787
|
202,174
|
|
|
Deferred income taxes |
103,303
|
106,598
|
|
|
Intercompany payables |
0
|
0
|
|
|
Other liabilities |
1,350
|
1,434
|
|
|
Total liabilities |
311,179
|
342,650
|
|
|
Redeemable noncontrolling interest |
3,466
|
3,766
|
|
|
Equity: |
|
|
|
|
Common stock, $0.01 par value, 60,000,000 shares authorized; 21,688,376 and 21,319,150 outstanding in 2018 and 2017, respectively, exclusive of treasury shares |
219
|
215
|
|
|
Additional paid-in capital |
445,885
|
443,944
|
|
|
Retained earnings (accumulated deficit) |
(7,210)
|
4,363
|
|
|
Treasury shares, at cost; 215,141 shares in 2018 and 2017 |
(2,951)
|
(2,951)
|
|
|
Accumulated other comprehensive income, net of tax |
105
|
110
|
|
|
Total equity |
436,048
|
445,681
|
|
|
Total liabilities, redeemable noncontrolling interest and stockholders’ equity |
750,693
|
792,097
|
|
|
Reportable Legal Entities | Parent |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
12,837
|
|
|
|
Receivables: |
|
|
|
|
Trade, operating, net of allowance for doubtful accounts of $903 |
0
|
0
|
|
|
Trade, dry-leasing |
0
|
0
|
|
|
Tax receivables |
1
|
0
|
|
|
Other |
0
|
0
|
|
|
Inventories, net |
0
|
0
|
|
|
Prepaid expenses |
698
|
349
|
|
|
Escrow deposits |
|
0
|
|
|
Total current assets |
13,536
|
11,149
|
|
|
Property and equipment |
0
|
0
|
|
|
Accumulated depreciation |
0
|
0
|
|
|
Property and equipment, net |
0
|
0
|
|
|
Equity investments and advances |
0
|
0
|
|
|
Investments in consolidated subsidiaries |
167,751
|
161,350
|
|
|
Intangible assets |
0
|
0
|
|
|
Deferred income taxes |
22,456
|
19,600
|
|
|
Intercompany receivables |
379,788
|
426,806
|
|
|
Other assets |
1,543
|
1,011
|
|
|
Total assets |
585,074
|
619,916
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued expenses |
183
|
638
|
|
|
Accrued wages and benefits |
0
|
0
|
|
|
Accrued interest |
480
|
549
|
|
|
Accrued income taxes |
0
|
0
|
|
|
Accrued other taxes |
0
|
18
|
|
|
Accrued contingencies |
0
|
0
|
|
|
Current portion of long-term debt |
0
|
0
|
|
|
Other current liabilities |
2,876
|
848
|
|
|
Total current liabilities |
3,539
|
2,053
|
|
|
Long-term debt (including $49 and $1,903 from VIEs in 2018 and 2017, respectively) |
145,590
|
172,292
|
|
|
Deferred income taxes |
0
|
0
|
|
|
Intercompany payables |
0
|
0
|
|
|
Other liabilities |
0
|
0
|
|
|
Total liabilities |
149,129
|
174,345
|
|
|
Redeemable noncontrolling interest |
0
|
0
|
|
|
Equity: |
|
|
|
|
Common stock, $0.01 par value, 60,000,000 shares authorized; 21,688,376 and 21,319,150 outstanding in 2018 and 2017, respectively, exclusive of treasury shares |
219
|
215
|
|
|
Additional paid-in capital |
445,885
|
443,944
|
|
|
Retained earnings (accumulated deficit) |
(7,208)
|
4,363
|
|
|
Treasury shares, at cost; 215,141 shares in 2018 and 2017 |
(2,951)
|
(2,951)
|
|
|
Accumulated other comprehensive income, net of tax |
|
0
|
|
|
Total equity |
435,945
|
445,571
|
|
|
Total liabilities, redeemable noncontrolling interest and stockholders’ equity |
585,074
|
619,916
|
|
|
Reportable Legal Entities | Guarantors |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
0
|
0
|
|
|
Receivables: |
|
|
|
|
Trade, operating, net of allowance for doubtful accounts of $903 |
29,552
|
27,968
|
|
|
Trade, dry-leasing |
3,940
|
5,124
|
|
|
Tax receivables |
0
|
0
|
|
|
Other |
1,002
|
1,126
|
|
|
Inventories, net |
20,808
|
20,746
|
|
|
Prepaid expenses |
1,610
|
721
|
|
|
Escrow deposits |
|
3,250
|
|
|
Total current assets |
56,912
|
58,935
|
|
|
Property and equipment |
906,839
|
956,918
|
|
|
Accumulated depreciation |
(302,649)
|
(296,573)
|
|
|
Property and equipment, net |
604,190
|
660,345
|
|
|
Equity investments and advances |
30,982
|
30,056
|
|
|
Investments in consolidated subsidiaries |
0
|
0
|
|
|
Intangible assets |
0
|
0
|
|
|
Deferred income taxes |
0
|
0
|
|
|
Intercompany receivables |
0
|
0
|
|
|
Other assets |
17,055
|
3,370
|
|
|
Total assets |
709,139
|
752,706
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued expenses |
14,804
|
13,655
|
|
|
Accrued wages and benefits |
5,995
|
6,804
|
|
|
Accrued interest |
65
|
57
|
|
|
Accrued income taxes |
12
|
24
|
|
|
Accrued other taxes |
1,593
|
1,192
|
|
|
Accrued contingencies |
0
|
0
|
|
|
Current portion of long-term debt |
1,663
|
1,663
|
|
|
Other current liabilities |
327
|
835
|
|
|
Total current liabilities |
24,459
|
24,230
|
|
|
Long-term debt (including $49 and $1,903 from VIEs in 2018 and 2017, respectively) |
27,148
|
27,979
|
|
|
Deferred income taxes |
124,509
|
124,948
|
|
|
Intercompany payables |
329,056
|
381,660
|
|
|
Other liabilities |
1,350
|
1,435
|
|
|
Total liabilities |
506,522
|
560,252
|
|
|
Redeemable noncontrolling interest |
3
|
4
|
|
|
Equity: |
|
|
|
|
Common stock, $0.01 par value, 60,000,000 shares authorized; 21,688,376 and 21,319,150 outstanding in 2018 and 2017, respectively, exclusive of treasury shares |
0
|
0
|
|
|
Additional paid-in capital |
100,306
|
100,306
|
|
|
Retained earnings (accumulated deficit) |
102,203
|
92,034
|
|
|
Treasury shares, at cost; 215,141 shares in 2018 and 2017 |
0
|
0
|
|
|
Accumulated other comprehensive income, net of tax |
105
|
110
|
|
|
Total equity |
202,614
|
192,450
|
|
|
Total liabilities, redeemable noncontrolling interest and stockholders’ equity |
709,139
|
752,706
|
|
|
Reportable Legal Entities | Non-guarantors |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
2,220
|
|
|
|
Receivables: |
|
|
|
|
Trade, operating, net of allowance for doubtful accounts of $903 |
5,794
|
5,872
|
|
|
Trade, dry-leasing |
0
|
0
|
|
|
Tax receivables |
3,205
|
2,829
|
|
|
Other |
449
|
497
|
|
|
Inventories, net |
56
|
366
|
|
|
Prepaid expenses |
240
|
133
|
|
|
Escrow deposits |
|
0
|
|
|
Total current assets |
11,964
|
12,480
|
|
|
Property and equipment |
16,410
|
16,024
|
|
|
Accumulated depreciation |
(3,096)
|
(2,455)
|
|
|
Property and equipment, net |
13,314
|
13,569
|
|
|
Equity investments and advances |
0
|
0
|
|
|
Investments in consolidated subsidiaries |
0
|
0
|
|
|
Intangible assets |
1,115
|
1,122
|
|
|
Deferred income taxes |
0
|
0
|
|
|
Intercompany receivables |
0
|
0
|
|
|
Other assets |
82
|
60
|
|
|
Total assets |
26,475
|
27,231
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued expenses |
2,259
|
2,128
|
|
|
Accrued wages and benefits |
1,521
|
1,460
|
|
|
Accrued interest |
0
|
0
|
|
|
Accrued income taxes |
28
|
4
|
|
|
Accrued other taxes |
372
|
600
|
|
|
Accrued contingencies |
946
|
859
|
|
|
Current portion of long-term debt |
594
|
1,073
|
|
|
Other current liabilities |
21
|
37
|
|
|
Total current liabilities |
5,741
|
6,161
|
|
|
Long-term debt (including $49 and $1,903 from VIEs in 2018 and 2017, respectively) |
49
|
1,903
|
|
|
Deferred income taxes |
1,250
|
1,250
|
|
|
Intercompany payables |
50,732
|
45,146
|
|
|
Other liabilities |
0
|
(1)
|
|
|
Total liabilities |
57,772
|
54,459
|
|
|
Redeemable noncontrolling interest |
3,463
|
3,762
|
|
|
Equity: |
|
|
|
|
Common stock, $0.01 par value, 60,000,000 shares authorized; 21,688,376 and 21,319,150 outstanding in 2018 and 2017, respectively, exclusive of treasury shares |
0
|
0
|
|
|
Additional paid-in capital |
4,562
|
4,562
|
|
|
Retained earnings (accumulated deficit) |
(39,322)
|
(35,552)
|
|
|
Treasury shares, at cost; 215,141 shares in 2018 and 2017 |
0
|
0
|
|
|
Accumulated other comprehensive income, net of tax |
0
|
0
|
|
|
Total equity |
(34,760)
|
(30,990)
|
|
|
Total liabilities, redeemable noncontrolling interest and stockholders’ equity |
26,475
|
27,231
|
|
|
Eliminations |
|
|
|
|
Current assets: |
|
|
|
|
Cash and cash equivalents |
0
|
|
|
|
Receivables: |
|
|
|
|
Trade, operating, net of allowance for doubtful accounts of $903 |
0
|
0
|
|
|
Trade, dry-leasing |
0
|
0
|
|
|
Tax receivables |
0
|
0
|
|
|
Other |
0
|
0
|
|
|
Inventories, net |
0
|
0
|
|
|
Prepaid expenses |
0
|
0
|
|
|
Escrow deposits |
|
0
|
|
|
Total current assets |
0
|
0
|
|
|
Property and equipment |
0
|
0
|
|
|
Accumulated depreciation |
0
|
0
|
|
|
Property and equipment, net |
0
|
0
|
|
|
Equity investments and advances |
0
|
0
|
|
|
Investments in consolidated subsidiaries |
(167,751)
|
(161,350)
|
|
|
Intangible assets |
0
|
0
|
|
|
Deferred income taxes |
(22,456)
|
(19,600)
|
|
|
Intercompany receivables |
(379,788)
|
(426,806)
|
|
|
Other assets |
0
|
0
|
|
|
Total assets |
(569,995)
|
(607,756)
|
|
|
Current liabilities: |
|
|
|
|
Accounts payable and accrued expenses |
0
|
0
|
|
|
Accrued wages and benefits |
0
|
0
|
|
|
Accrued interest |
0
|
0
|
|
|
Accrued income taxes |
0
|
0
|
|
|
Accrued other taxes |
0
|
0
|
|
|
Accrued contingencies |
0
|
0
|
|
|
Current portion of long-term debt |
0
|
0
|
|
|
Other current liabilities |
0
|
0
|
|
|
Total current liabilities |
0
|
0
|
|
|
Long-term debt (including $49 and $1,903 from VIEs in 2018 and 2017, respectively) |
0
|
0
|
|
|
Deferred income taxes |
(22,456)
|
(19,600)
|
|
|
Intercompany payables |
(379,788)
|
(426,806)
|
|
|
Other liabilities |
0
|
0
|
|
|
Total liabilities |
(402,244)
|
(446,406)
|
|
|
Redeemable noncontrolling interest |
0
|
0
|
|
|
Equity: |
|
|
|
|
Common stock, $0.01 par value, 60,000,000 shares authorized; 21,688,376 and 21,319,150 outstanding in 2018 and 2017, respectively, exclusive of treasury shares |
0
|
0
|
|
|
Additional paid-in capital |
(104,868)
|
(104,868)
|
|
|
Retained earnings (accumulated deficit) |
(62,883)
|
(56,482)
|
|
|
Treasury shares, at cost; 215,141 shares in 2018 and 2017 |
0
|
0
|
|
|
Accumulated other comprehensive income, net of tax |
0
|
0
|
|
|
Total equity |
(167,751)
|
(161,350)
|
|
|
Total liabilities, redeemable noncontrolling interest and stockholders’ equity |
$ (569,995)
|
$ (607,756)
|
|
|