Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (120,350)	$ (7,801)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	17,574	18,076
Amortization of deferred financing costs	951	915
Noncash operating lease expense	337	285
Amortization of nonvested stock compensation expense	481	452
Impairment of vessel assets	112,814	0
Loss (gain) on sale of vessels	486	(611)
Insurance proceeds for protection and indemnity claims	101	226
Change in assets and liabilities:
(Increase) decrease in due from charterers	(1,303)	5,041
(Increase) decrease in prepaid expenses and other current assets	(1,074)	927
Increase in inventories	(2,134)	(1,077)
Decrease in accounts payable and accrued expenses	(9,916)	(2,114)
Increase (decrease) in deferred revenue	1,191	(1,907)
Decrease in operating lease liabilities	(412)	(390)
Deferred drydock costs incurred	(2,784)	(410)
Net cash (used in) provided by operating activities	(4,038)	11,612
Cash flows from investing activities:
Purchase of vessels and ballast water treatment systems, including deposits	(273)	(3,406)
Purchase of scrubbers (capitalized in Vessels)	(7,778)	(5,868)
Purchase of other fixed assets	(1,039)	(1,199)
Net proceeds from sale of vessels	14,510	6,351
Insurance proceeds for hull and machinery claims	157
Net cash provided by (used in) investing activities	5,577	(4,122)
Cash flows from financing activities:
Payment of common stock issuance costs		(105)
Cash dividends paid	(7,290)
Payment of deferred financing costs		(591)
Net cash used in financing activities	(14,280)	(17,276)
Net decrease in cash, cash equivalents and restricted cash	(12,741)	(9,786)
Cash, cash equivalents and restricted cash at beginning of period	162,249	202,761
Cash, cash equivalents and restricted cash at end of period	149,508	192,975
Secured Debt | $108 Million Credit Facility
Cash flows from financing activities:
Repayment of secured debt	(1,580)	(1,580)
Secured Debt | $495 Million Credit Facility
Cash flows from financing activities:
Proceeds from credit facility	11,250
Repayment of secured debt	$ (16,660)	$ (15,000)