Subsequent Events	12 Months Ended
Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events New ABL Credit Facility On February 23, 2018, the Company, as borrower, and the Company’s subsidiaries TIW Corporation and Honing, Inc., as guarantors, entered into a five-year senior secured revolving credit facility (the “New ABL Credit Facility”) with JPMorgan Chase Bank, N.A., as administrative agent, and other financial institutions as lenders with total commitments of $100.0 million, including up to $10.0 million available for letters of credit. The maximum amount that the Company may borrow under the New ABL Credit Facility is subject to the borrowing base, which is based on a percentage of eligible accounts receivable and eligible inventory, subject to reserves and other adjustments. All obligations under the New ABL Credit Facility are fully and unconditionally guaranteed jointly and severally by the Company, TIW, Honing, Inc., and future significant domestic subsidiaries, subject to customary exceptions. Borrowings under the New ABL Credit Facility are secured by liens on substantially all of the Company’s personal property, and bear interest at the Company’s option at either (i) the CB Floating Rate (as defined therein), calculated as the rate of interest publicly announced by JPMorgan Chase Bank, N.A., as its “prime rate,” subject to each increase or decrease in such prime rate effective as of the date such change occurs, with such CB Floating Rate not being less than Adjusted One Month LIBOR Rate (as defined therein) or (ii) the Adjusted LIBO Rate (as defined therein), plus, in each case, an applicable margin. The applicable margin ranges from 1.00% to 1.50% per annum for CBFR loans and 2.00% to 2.50% per annum for Eurodollar loans and, in each case, is based on the Company’s leverage ratio. The unused portion of the New ABL Credit Facility is subject to a commitment fee that varies from 0.250% to 0.375% per annum, according to average unused commitments under the New ABL Credit Facility. Interest on Eurodollar loans is payable at the end of the selected interest period, but no less frequently than quarterly. Interest on CB Floating Rate loans is payable monthly in arrears. The New ABL Credit Facility contains various covenants and restrictive provisions which limit the Company’s ability to, among other things, (1) enter into asset sales; (2) incur additional indebtedness; (3) make investments or loans and create liens; (4) pay certain dividends or make other distributions and (5) engage in transactions with affiliates. The New ABL Credit Facility also requires the Company to maintain a fixed charge coverage ratio based on the ratio of EBITDA (as defined therein) to Fixed Charges (as defined therein) during certain periods, including when availability under the New ABL Credit Facility is under certain levels. If the Company fails to perform its obligations under the agreement that results in an event of default, the commitments under the New ABL Credit Facility could be terminated and any outstanding borrowings under the New ABL Credit Facility may be declared immediately due and payable. The New ABL Credit Facility also contains cross default provisions that apply to the Company’s other indebtedness. The Company is in compliance with the related covenants as of February 27, 2018. As of February 27, 2018, the Company had no borrowings outstanding under the New ABL Credit Facility no letters of credit outstanding under the New ABL Credit Facility and availability of $71.0 million. Termination of Rights Agreement On February 26, 2018, the Company entered into Amendment No. 1 (the “Amendment”) to the Rights Agreement (the “Rights Agreement”), dated as of November 24, 2008, by and between the Company and Computershare Inc., as successor-in-interest to Computershare Shareowner Services LLC (formerly known as Mellon Investor Services LLC), as rights agent. The Amendment accelerated the expiration of the Company’s rights to purchase Series A Junior Participating Preferred Stock, par value $0.01 per share (the “Rights”), from 5:00 p.m., New York City time, on November 24, 2018 to 5:00 p.m., New York City time, on February 26, 2018 , and had the effect of terminating the Rights Agreement on that date. At the time of the termination of the Rights Agreement, all of the Rights distributed to holders of the Company’s common stock pursuant to the Rights Agreement expired. Restated Certificate of Incorporation On February 26, 2018, the Company filed with the Secretary of State of the State of Delaware a restated certificate of incorporation as adopted by the Board of Directors. The restated certificate of incorporation did not further amend the Company’s existing certificate of incorporation and only restates and integrates into a single instrument all prior amendments to the existing certificate of incorporation. Immediately prior to filing the above-referenced restated certificate of incorporation on February 26, 2018, the Company filed a Certificate of Elimination with the Delaware Secretary of State to eliminate the Series A Junior Participating Preferred Stock. No shares of such securities were outstanding or will be issued. Copies of the Restated Certificate of Incorporation and Certificate of Elimination are filed as Exhibits 3.1 and 3.2. New Contract in the First Quarter of 2018 In February 2018, the Company was awarded a contract to supply top tensioned riser (TTR) systems and related services for the development of the CA Rong Do Project located offshore Vietnam operated by Repsol with the participation of Mubadala, PVEP and PetroVietnam. The project will be in our Asia Pacific region and will affect our bookings in the backlog disclosure for the first quarter of 2018.

Subsequent Events

New ABL Credit Facility

On February 23, 2018, the Company, as borrower, and the Company’s subsidiaries TIW Corporation and Honing, Inc., as guarantors, entered into a five-year senior secured revolving credit facility (the “New ABL Credit Facility”) with JPMorgan Chase Bank, N.A., as administrative agent, and other financial institutions as lenders with total commitments of $100.0 million, including up to $10.0 million available for letters of credit. The maximum amount that the Company may borrow under the New ABL Credit Facility is subject to the borrowing base, which is based on a percentage of eligible accounts receivable and eligible inventory, subject to reserves and other adjustments.

All obligations under the New ABL Credit Facility are fully and unconditionally guaranteed jointly and severally by the Company, TIW, Honing, Inc., and future significant domestic subsidiaries, subject to customary exceptions. Borrowings under the New ABL Credit Facility are secured by liens on substantially all of the Company’s personal property, and bear interest at the Company’s option at either (i) the CB Floating Rate (as defined therein), calculated as the rate of interest publicly announced by JPMorgan Chase Bank, N.A., as its “prime rate,” subject to each increase or decrease in such prime rate effective as of the date such change occurs, with such CB Floating Rate not being less than Adjusted One Month LIBOR Rate (as defined therein) or (ii) the Adjusted LIBO Rate (as defined therein), plus, in each case, an applicable margin. The applicable margin ranges from 1.00% to 1.50% per annum for CBFR loans and 2.00% to 2.50% per annum for Eurodollar loans and, in each case, is based on the Company’s leverage ratio. The unused portion of the New ABL Credit Facility is subject to a commitment fee that varies from 0.250% to 0.375% per annum, according to average unused commitments under the New ABL Credit Facility. Interest on Eurodollar loans is payable at the end of the selected interest period, but no less frequently than quarterly. Interest on CB Floating Rate loans is payable monthly in arrears.

The New ABL Credit Facility contains various covenants and restrictive provisions which limit the Company’s ability to, among other things, (1) enter into asset sales; (2) incur additional indebtedness; (3) make investments or loans and create liens; (4) pay certain dividends or make other distributions and (5) engage in transactions with affiliates. The New ABL Credit Facility also requires the Company to maintain a fixed charge coverage ratio based on the ratio of EBITDA (as defined therein) to Fixed Charges (as defined therein) during certain periods, including when availability under the New ABL Credit Facility is under certain levels. If the Company fails to perform its obligations under the agreement that results in an event of default, the commitments under the New ABL Credit Facility could be terminated and any outstanding borrowings under the New ABL Credit Facility may be declared immediately due and payable. The New ABL Credit Facility also contains cross default provisions that apply to the Company’s other indebtedness. The Company is in compliance with the related covenants as of February 27, 2018.

As of February 27, 2018, the Company had no borrowings outstanding under the New ABL Credit Facility no letters of credit outstanding under the New ABL Credit Facility and availability of $71.0 million.

Termination of Rights Agreement

On February 26, 2018, the Company entered into Amendment No. 1 (the “Amendment”) to the Rights Agreement (the “Rights Agreement”), dated as of November 24, 2008, by and between the Company and Computershare Inc., as successor-in-interest to Computershare Shareowner Services LLC (formerly known as Mellon Investor Services LLC), as rights agent. The Amendment accelerated the expiration of the Company’s rights to purchase Series A Junior Participating Preferred Stock, par value $0.01 per share (the “Rights”), from 5:00 p.m., New York City time, on November 24, 2018 to 5:00 p.m., New York City time, on February 26, 2018 , and had the effect of terminating the Rights Agreement on that date. At the time of the termination of the Rights Agreement, all of the Rights distributed to holders of the Company’s common stock pursuant to the Rights Agreement expired.

Restated Certificate of Incorporation

On February 26, 2018, the Company filed with the Secretary of State of the State of Delaware a restated certificate of incorporation as adopted by the Board of Directors. The restated certificate of incorporation did not further amend the Company’s existing certificate of incorporation and only restates and integrates into a single instrument all prior amendments to the existing certificate of incorporation.

Immediately prior to filing the above-referenced restated certificate of incorporation on February 26, 2018, the Company filed a Certificate of Elimination with the Delaware Secretary of State to eliminate the Series A Junior Participating Preferred Stock. No shares of such securities were outstanding or will be issued. Copies of the Restated Certificate of Incorporation and Certificate of Elimination are filed as Exhibits 3.1 and 3.2.

New Contract in the First Quarter of 2018

In February 2018, the Company was awarded a contract to supply top tensioned riser (TTR) systems and related services for the development of the CA Rong Do Project located offshore Vietnam operated by Repsol with the participation of Mubadala, PVEP and PetroVietnam. The project will be in our Asia Pacific region and will affect our bookings in the backlog disclosure for the first quarter of 2018.