Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 97,284	$ 96,443
Restricted cash and marketable securities	20,237	7,057
Marine operating supplies	5,413	5,045
Inventories	1,826	1,794
Prepaid expenses and other current assets	22,661	21,351
Total current assets	147,421	131,690
Property and equipment, net	260,804	250,952
Goodwill	22,105	22,105
Intangibles, net	9,159	9,554
Other long-term assets	9,310	10,047
Total assets	448,799	424,348
Current Liabilities:
Unearned passenger revenues	111,259	112,238
Accounts payable and accrued expenses	24,702	30,422
Long-term debt - current	1,500	1,750
Total current liabilities	137,461	144,410
Long-term debt, less current portion	188,481	164,186
Deferred tax liabilties	2,791	2,444
Other long-term liabilities	692	684
Total liabilities	329,425	311,724
COMMITMENTS AND CONTINGENCIES
REDEEMABLE NONCONTROLLING INTEREST	6,423	6,302
STOCKHOLDERS' EQUITY
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; no shares issued and outstanding
Common stock, $0.0001 par value, 200,000,000 shares authorized; 45,767,643 and 45,427,030 issued, 45,357,640 and 44,787,608 outstanding as of March 31, 2018 and December 31, 2017, respectively	5	5
Additional paid-in capital	38,331	42,498
Retained earnings	74,615	63,819
Total stockholders' equity	112,951	106,322
Total liabilities, stockholders' equity and redeemable noncontrolling interest	$ 448,799	$ 424,348

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.