Quarterly report pursuant to Section 13 or 15(d)

GUARANTORS OF SECURITIES (Condensed Balance Sheet) (Details)

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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)