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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 4 Months Ended | 5 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 31, 2017 | Dec. 31, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Mar. 31, 2017
Operating activities: |  |  |  |  |  |  |  |  |  |
Net loss |  |  | $ (38,726) |  | $ (50,211) |  |  |  |  |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 20,131 |  | 22,572 |  |  |  |  |
Amortization of deferred drydocking and survey costs |  |  | 206 |  | 2,230 |  |  |  |  |
Amortization of debt premium and discounts |  |  | (715) |  | (900) |  |  |  |  |
Gain on asset dispositions, net |  |  | (6,616) |  | (3,257) |  |  |  |  |
Asset impairments |  |  | 16,777 | [1] | 7,401 | [2] |  |  |  |
Changes in investments in, at equity, and advances to unconsolidated companies |  |  | (4,531) |  | 27,881 |  |  |  |  |
Compensation expense - stock-based |  |  | 3,731 |  | 6,139 |  |  |  |  |
Changes in assets and liabilities, net: |  |  |  |  |  |  |  |  |  |
Trade and other receivables |  |  | 2,312 |  | (15,097) |  |  |  |  |
Changes in due to/from affiliate, net |  |  | (2,373) |  |  |  |  |  |  |
Changes in due to/from related parties, net |  |  |  |  | 19,869 |  |  |  |  |
Marine operating supplies |  |  | 1,229 |  | (711) |  |  |  |  |
Other current assets |  |  | 10,305 |  | 8,752 |  |  |  |  |
Accounts payable |  |  | (1,259) |  | 1,709 |  |  |  |  |
Accrued expenses |  |  | (24,896) |  | (6,652) |  |  |  |  |
Accrued property and liability losses |  |  | (176) |  | 205 |  |  |  |  |
Other current liabilities |  |  | (4,026) |  | 5,590 |  |  |  |  |
Other liabilities |  |  | (1,089) |  | 11 |  |  |  |  |
Cash paid for deferred drydocking and survey costs |  |  |  |  | (13,394) |  |  |  |  |
Other, net |  |  | (5,830) |  | 4,846 |  |  |  |  |
Net cash provided by (used in) operating activities |  |  | (35,546) |  | 16,983 |  |  |  |  |
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |
Proceeds from sales of assets |  |  | 32,742 |  | 12,968 |  |  |  |  |
Additions to properties and equipment |  |  | (9,834) |  | (5,775) |  |  |  |  |
Net cash provided by (used in) investing activities |  |  | 22,908 |  | 7,193 |  |  |  |  |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |
Principal payment on long-term debt |  |  | (1,176) |  | (2,637) |  |  |  |  |
Payments to General Unsecured Creditors |  |  | (93,719) |  | (8,377) |  |  |  |  |
Cash received for issuance of common stock |  |  | 2 |  |  |  |  |  |  |
Other |  |  |  |  | (1,998) |  |  |  |  |
Net cash used in financing activities |  |  | (94,893) |  | (13,012) |  |  |  |  |
Net change in cash, cash equivalents and restricted cash |  |  | (107,531) |  | 11,164 |  |  |  |  |
Cash, cash equivalents and restricted cash at beginning of period |  |  | 560,866 |  | 453,335 |  |  |  |  |
Cash, cash equivalents and restricted cash at end of period | $ 560,866 |  | 453,335 |  | 464,499 |  |  |  |  |
Cash paid during the period for: |  |  |  |  |  |  |  |  |  |
Interest, net of amounts capitalized |  |  | 8,223 |  | 16,134 |  |  |  |  |
Income taxes |  |  | 4,654 |  | $ 10,083 |  |  |  |  |
Predecessor |  |  |  |  |  |  |  |  |  |
Operating activities: |  |  |  |  |  |  |  |  |  |
Net loss | (1,646,909) |  |  |  |  |  | $ (611,382) |  | $ (650,011) |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |
Reorganization items | 1,368,882 |  |  |  |  |  | 308,011 |  |  |
Depreciation and amortization | 47,447 |  |  |  |  |  | 73,879 |  | 167,291 |
Provision for deferred income taxes | (5,543) |  |  |  |  |  | (7,743) |  | (2,200) |
Gain on asset dispositions, net | (3,561) |  |  |  |  |  | (9,253) |  | (24,099) |
Asset impairments | 184,748 | [1] |  |  |  |  | 228,280 | [2] | 484,727 | [1]
Changes in investments in, at equity, and advances to unconsolidated companies | (4,252) |  |  |  |  |  | (9,163) |  | (7,613) |
Compensation expense - stock-based | 1,707 |  |  |  |  |  | (562) |  | 3,278 |
Excess tax liability on stock option activity |  |  |  |  |  |  | 4,927 |  | 4,927 |
Changes in assets and liabilities, net: |  |  |  |  |  |  |  |  |  |
Trade and other receivables | 6,286 |  |  |  |  |  | 57,701 |  | 104,829 |
Changes in due to/from affiliate, net | 1,301 |  |  |  |  |  |  |  | 20,829 |
Changes in due to/from related parties, net |  |  |  |  |  |  | 22,983 |  |  |
Marine operating supplies | 88 |  |  |  |  |  | (922) |  | 2,285 |
Other current assets | (1,840) |  |  |  |  |  | (22,668) |  | (12,523) |
Accounts payable | 8,157 |  |  |  |  |  | (15,384) |  | (17,531) |
Accrued expenses | 17,245 |  |  |  |  |  | 17,870 |  | (18,687) |
Accrued property and liability losses | (822) |  |  |  |  |  | (816) |  | 262 |
Other current liabilities | (2,337) |  |  |  |  |  | (1,216) |  | (26,658) |
Other liabilities | 2,884 |  |  |  |  |  | 3,135 |  | (2,657) |
Other, net | 4,932 |  |  |  |  |  | 9,110 |  | 3,372 |
Net cash provided by (used in) operating activities | (21,587) |  |  |  |  |  | 46,787 |  | 29,821 |
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |
Proceeds from sales of assets | 2,172 |  |  |  |  |  | 3,072 |  | 14,797 |
Additions to properties and equipment | (2,265) |  |  |  |  |  | (9,982) |  | (25,499) |
Payments related to novated vessel construction contract | 5,272 |  |  |  |  |  |  |  |  |
Proceeds related to novated vessel construction contract |  |  |  |  |  |  | 5,272 |  |  |
Refunds from cancelled vessel construction contracts |  |  |  |  |  |  |  |  | 25,565 |
Net cash provided by (used in) investing activities | 5,179 |  |  |  |  |  | (1,638) |  | 14,863 |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |
Principal payment on long-term debt | (5,124) |  |  |  |  |  | (5,048) |  | (10,069) |
Payments to General Unsecured Creditors | (122,806) |  |  |  |  |  |  |  |  |
Other | (1,200) |  |  |  |  |  | (6,127) |  | (6,649) |
Net cash used in financing activities | (129,130) |  |  |  |  |  | (11,175) |  | (16,718) |
Net change in cash, cash equivalents and restricted cash | (145,538) |  |  |  |  |  | 33,974 |  | 27,966 |
Cash, cash equivalents and restricted cash at beginning of period | 706,404 |  | $ 560,866 |  |  |  | 649,804 |  | 678,438 |
Cash, cash equivalents and restricted cash at end of period | 560,866 |  |  |  |  |  | 683,778 |  | 706,404 |
Cash paid during the period for: |  |  |  |  |  |  |  |  |  |
Interest, net of amounts capitalized | 1,577 |  |  |  |  |  | 8,651 |  | 70,687 |
Income taxes | $ 4,740 |  |  |  |  |  | 5,778 |  | 26,916 |
Additions to properties and equipment |  |  |  |  |  |  | $ 282 |  | $ 5,047 |
[1] | The period August 1, 2017 through December 31, 2017 and the year ended March 31, 2017 included $2.3 million and $2.2 million, respectively, of impairments related to inventory and other non-vessel assets.
[2] | Refer to Note (14) for additional information regarding asset impairment.

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- Definition The increase (decrease) during the reporting period in the aggregate amount of obligations to be paid to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management; an entity and its principal owners, management, or member of their immediate families; affiliates; or other parties with the ability to exert significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3367-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585 + Details
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