Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (56,868)	$ (51,224)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	54,532	50,605
Amortization of deferred financing costs	2,828	2,110
Payment of PIK interest		(5,341)
Noncash operating lease expense	911
Amortization of nonvested stock compensation expense	1,596	1,776
Impairment of right-of-use asset	223
Impairment of vessel assets	26,078	56,586
Gain on sale of vessels	(611)	(1,509)
Loss on debt extinguishment		4,533
Insurance proceeds for protection and indemnity claims	413	268
Insurance proceeds for loss of hire claims		58
Change in assets and liabilities:
Decrease (increase) in due from charterers	1,915	(6,329)
Increase in prepaid expenses and other current assets	(655)	(5,966)
Decrease (increase) in inventories	6,566	(14,647)
Decrease in other noncurrent assets		514
Increase in accounts payable and accrued expenses	5,061	8,169
(Decrease) increase in deferred revenue	(79)	5,017
Decrease in operating lease liabilities	(1,187)
Increase in deferred rent		988
Deferred drydock costs incurred	(11,965)	(2,233)
Net cash provided by operating activities	28,758	43,375
Cash flows from investing activities:
Purchase of vessels, including deposits	(10,392)	(239,695)
Purchase of scrubbers (capitalized in Vessels)	(24,736)
Purchase of other fixed assets	(3,590)	(888)
Net proceeds from sale of vessels	6,309	10,626
Insurance proceeds for hull and machinery claims	612	3,466
Net cash used in investing activities	(31,797)	(226,491)
Cash flows from financing activities:
Payment of debt extinguishment costs		(2,962)
Proceeds from issuance of common stock		110,249
Payment of common stock issuance costs	(105)	(496)
Payment of deferred financing costs	(611)	(11,499)
Net cash (used in) provided by financing activities	(33,531)	144,209
Net decrease in cash, cash equivalents and restricted cash	(36,570)	(38,907)
Cash, cash equivalents and restricted cash at beginning of period	202,761	204,946
Cash, cash equivalents and restricted cash at end of period	166,191	166,039
Secured Debt | $108 Million Credit Facility
Cash flows from financing activities:
Proceeds from credit facility		108,000
Repayment of secured debt	(4,740)	0
Secured Debt | $495 Million Credit Facility
Cash flows from financing activities:
Proceeds from credit facility	21,500	460,000
Repayment of secured debt	(49,575)	0
Secured Debt | $400 Million Credit Facility
Adjustments to reconcile net loss to net cash provided by operating activities:
Payment of PIK interest		(5,341)
Cash flows from financing activities:
Repayment of secured debt		(399,600)
Secured Debt | 2014 Term Loan Facilities
Cash flows from financing activities:
Repayment of secured debt	0	(25,544)
Line of Credit Facility | $98 Million Credit Facility
Cash flows from financing activities:
Repayments of Credit Facility	$ 0	$ (93,939)