Debt	12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]
Debt	NOTE 7. DEBT Credit Facilities On November 6, 2014, NUAL entered into a credit facility for 8.0 million Australian Dollars with Barclays Bank PLC. Interest is payable under this facility at a rate of 2.0% per annum above a floating rate tied to the average mid-rate for Australian bills of exchange administered by the Australian Financial Markets Association. The facility may be cancelled by either party after providing written notice. This credit facility contains customary covenants for facilities of this type, including a restriction on future encumbrances that are outside the ordinary course of business, and a requirement to maintain at least £75.0 million of FAL. As of December 31, 2015, letters of credit with an aggregate face amount of 8.0 million Australian Dollars were outstanding under the credit facility, and our Company was in compliance with all covenants. On November 24, 2014, our Company entered into a $175.0 million credit facility agreement with ING Bank N.V., London Branch, individually and as Administrative Agent and a syndicate of lenders, which is secured by all the common stock of NIC and requires our Company to maintain at least 40.0% of the outstanding amounts under such facility as FAL. In addition, in order to support the increased underwriting capacity of the Syndicate for the 2016 UWY, our Company entered into a $25.0 million credit facility with ING Bank N.V., London Branch on November 20, 2015. Both of these facilities, as well as the November 6, 2014 facility, are used to fund underwriting obligations at Lloyd’s for the 2016 UWY, as well as open prior UWYs. The November 20, 2015 credit facility is a non-committed facility which has an applicable fee rate ranging from 0.85% to 1.20% per annum based upon our Company’s S&P rating. For the November 24, 2014 credit facility the applicable fee rate payable ranges from 0.95% to 1.60% per annum based on a tiered schedule that is based on our Company’s then-current financial strength ratings issued by S&P and A.M. Best and the amount of our Company’s own collateral utilized to fund its participation in the Syndicate. The letters of credit issued under both of these facilities can be denominated in GBP and their aggregate face amount will fluctuate based on exchange rates. If any letters of credit remain outstanding under these facilities after December 31, 2016, our Company would be required to post additional collateral to secure the remaining letters of credit. As of December 31, 2015, letters of credit with an aggregate face amount of $20.0 million and $175.0 million were outstanding under the November 20, 2015 and November 24, 2014 credit facilities, respectively, and our Company had an aggregate of $3.3 million of cash collateral posted. Each of the November 20, 2015 and November 24, 2014 credit facilities contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. These credit facilities also provide for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by our Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting our Company, the occurrence of certain material judgments, or a change in control of our Company. As of December 31, 2015, our Company was in compliance with all covenants. Senior notes On October 4, 2013, our Company completed a public debt offering of $265.0 million principal amount of the 5.75% Senior notes and received net proceeds of $263.0 million. Our Company used a portion of the proceeds for the redemption of the 7.0% Senior notes due May 1, 2016 (“7.0% Senior notes”), as well as a $17.9 million call premium in connection with the redemption of the 7.0% Senior notes. The unamortized discount as of December 31, 2015 and 2014 was $1.4 million and $1.6 million, respectively. The interest rate payable on the 5.75% Senior notes is subject to a tiered adjustment based on defined changes in our Company’s debt ratings. Our Company may redeem the 5.75% Senior notes in whole at any time or in part from time to time at a make-whole redemption price. The 5.75% Senior notes are our Company’s only senior unsecured obligation and will rank equally with future senior unsecured indebtedness. The terms of the 5.75% Senior notes contain various restrictive business and financial covenants, including a restriction on indebtedness, and other restrictions typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the Common stock of certain subsidiaries. As of December 31, 2015, our Company was in compliance with all such covenants.

NOTE 7. DEBT

Credit Facilities

On November 6, 2014, NUAL entered into a credit facility for 8.0 million Australian Dollars with Barclays Bank PLC. Interest is payable under this facility at a rate of 2.0% per annum above a floating rate tied to the average mid-rate for Australian bills of exchange administered by the Australian Financial Markets Association. The facility may be cancelled by either party after providing written notice. This credit facility contains customary covenants for facilities of this type, including a restriction on future encumbrances that are outside the ordinary course of business, and a requirement to maintain at least £75.0 million of FAL. As of December 31, 2015, letters of credit with an aggregate face amount of 8.0 million Australian Dollars were outstanding under the credit facility, and our Company was in compliance with all covenants.

On November 24, 2014, our Company entered into a $175.0 million credit facility agreement with ING Bank N.V., London Branch, individually and as Administrative Agent and a syndicate of lenders, which is secured by all the common stock of NIC and requires our Company to maintain at least 40.0% of the outstanding amounts under such facility as FAL. In addition, in order to support the increased underwriting capacity of the Syndicate for the 2016 UWY, our Company entered into a $25.0 million credit facility with ING Bank N.V., London Branch on November 20, 2015. Both of these facilities, as well as the November 6, 2014 facility, are used to fund underwriting obligations at Lloyd’s for the 2016 UWY, as well as open prior UWYs.

The November 20, 2015 credit facility is a non-committed facility which has an applicable fee rate ranging from 0.85% to 1.20% per annum based upon our Company’s S&P rating. For the November 24, 2014 credit facility the applicable fee rate payable ranges from 0.95% to 1.60% per annum based on a tiered schedule that is based on our Company’s then-current financial strength ratings issued by S&P and A.M. Best and the amount of our Company’s own collateral utilized to fund its participation in the Syndicate. The letters of credit issued under both of these facilities can be denominated in GBP and their aggregate face amount will fluctuate based on exchange rates. If any letters of credit remain outstanding under these facilities after December 31, 2016, our Company would be required to post additional collateral to secure the remaining letters of credit. As of December 31, 2015, letters of credit with an aggregate face amount of $20.0 million and $175.0 million were outstanding under the November 20, 2015 and November 24, 2014 credit facilities, respectively, and our Company had an aggregate of $3.3 million of cash collateral posted.

Each of the November 20, 2015 and November 24, 2014 credit facilities contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. These credit facilities also provide for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by our Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting our Company, the occurrence of certain material judgments, or a change in control of our Company. As of December 31, 2015, our Company was in compliance with all covenants.

Senior notes

On October 4, 2013, our Company completed a public debt offering of $265.0 million principal amount of the 5.75% Senior notes and received net proceeds of $263.0 million. Our Company used a portion of the proceeds for the redemption of the 7.0% Senior notes due May 1, 2016 (“7.0% Senior notes”), as well as a $17.9 million call premium in connection with the redemption of the 7.0% Senior notes. The unamortized discount as of December 31, 2015 and 2014 was $1.4 million and $1.6 million, respectively.

The interest rate payable on the 5.75% Senior notes is subject to a tiered adjustment based on defined changes in our Company’s debt ratings. Our Company may redeem the 5.75% Senior notes in whole at any time or in part from time to time at a make-whole redemption price. The 5.75% Senior notes are our Company’s only senior unsecured obligation and will rank equally with future senior unsecured indebtedness.

The terms of the 5.75% Senior notes contain various restrictive business and financial covenants, including a restriction on indebtedness, and other restrictions typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the Common stock of certain subsidiaries. As of December 31, 2015, our Company was in compliance with all such covenants.