CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
OPERATING ACTIVITIES:      
Net loss $ (164,787) $ (300,149) $ (126,067)
Adjustments to reconcile net loss to net cash provided by operating activities:      
Depreciation and amortization 104,112 113,825 120,310
Amortization and write-off of deferred financing costs 6,391 5,653 4,524
Amortization of deferred drydock and special survey costs 14,727 13,768 13,340
Provision for losses on accounts receivable 269 1,304 59
Share based compensation 4,296 3,446 5,591
Gain on bond and debt extinguishment (185) (29,187) 0
Income tax (benefit)/expense (3,192) 1,265 (3,154)
Realized holding loss on investments in-available-for-sale-securities 0 345 1,782
Loss/(equity) in affiliates, net of dividends received 4,610 219,417 (30,398)
Gain on sale of assets (1,064) 0 0
Impairment losses 50,565 0 0
Changes in operating assets and liabilities:      
Decrease/(increase) in restricted cash 2,666 (2,906) 198
Decrease/(increase) in accounts receivable 5,293 (2,350) 20,588
(Increase)/decrease in inventories (1,681) (4,046) 8,079
Decrease /(increase) in prepaid expenses and other assets 3,123 (4,313) 375
Decrease/(increase) in due from affiliate companies 15,651 (6,984) 13,802
(Decrease)/increase in accounts payable (7,392) 7,209 17,606
Increase/ (decrease) in accrued expenses and other liabilities 2,422 (9,159) 3,104
Increase in due to affiliate companies 23,980 22,694 14,142
Increase/(decrease) in deferred income and cash received in advance 1,847 (4,309) 1,046
(Decrease)/increase in other long-term liabilities and deferred income (43) 22,493 3,391
Payments for drydock and special survey costs (10,824) (11,096) (24,840)
Net cash provided by operating activities 50,784 36,920 43,478
INVESTING ACTIVITIES:      
Loan to affiliate company (4,461) (4,275) (7,327)
Decrease in long-term receivable from affiliate companies 0 0 10,351
Dividends from affiliate companies 7,298 0 18,244
Deposits for vessels, port terminals and other fixed assets (36,589) (86,911) (26,713)
Proceeds from lease receivable 200 0 0
Proceeds from sale of asset 11,828 0 0
Acquisition of investments in affiliates (7,638) 0 (22,846)
Acquisition of vessels 0 (60,115) 0
Purchase of property, equipment and other fixed assets (10,279) (4,567) (8,208)
Disposal of available-for-sale securities 0 5,303 0
Deposit for option to acquire vessel (2,724) 0 0
Net cash used in investing activities (42,365) (150,565) (36,499)
FINANCING ACTIVITIES:      
Repurchase of preferred stock (571) (9,323) 0
(Repayment of)/proceeds from loan payable to affiliate company (55,132) 50,000 0
Proceeds from transfer of rights to affiliate company 4,050 0 0
Proceeds from long-term loans 125,495 116,331 0
Proceeds from issuance of senior and ship mortgage notes net of discount and debt issuance costs 291,218 0 0
Repayment of long-term debt and payment of principal (48,600) (40,737) (36,056)
Repayment/repurchase of senior notes (291,094) (30,671) 0
Payments of obligations under capital leases (12,374) (3,032) (1,501)
Debt issuance costs (609) (2,844) (50)
(Increase)/ decrease in restricted cash (3,839) 11,000 (11,114)
Payment for acquisition of intangible asset 0 0 (6,800)
Acquisition of treasury stock 0 (818) (252)
Dividends paid to noncontrolling shareholders (25,323) 0 0
Dividends paid 0 (3,681) (35,350)
Net cash (used in)/provided by financing activities (16,779) 86,225 (91,123)
Decrease in cash and cash equivalents (8,360) (27,420) (84,144)
Cash and cash equivalents, beginning of year 135,992 163,412 247,556
Cash and cash equivalents, end of year 127,632 135,992 163,412
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION      
Cash paid for interest, net of capitalized interest 115,898 108,380 108,461
Cash paid for income taxes 393 92 139
Non-cash investing and financing activities      
Purchase of property, equipment and other fixed assets 0 (472) (710)
Deposits for vessels, port terminals and other fixed assets (726) (5,726) (1,871)
Revaluation of vessels due to termination/restructuring of capital lease obligations 5,243 0 210
Decrease in capital lease obligations due to restructuring 0 0 (210)
Dividends payable 0 0 3,081
Accrued interest income on loan receivable from affiliate company (2,643) (2,259) (1,356)
Accrued interest expense on loan payable to affiliate company 0 1,240 0
Accrued interest expense payable to affiliate company 815 0 0
Acquisition of vessels, port terminals and other fixed assets (843) 0 0
Long-term payable to affiliate company 29,423 0 0
Transfers from deposits for vessels, port terminals and other fixed assets $ 137,357 $ 0 $ 0