Commitments and Contingencies	3 Months Ended
Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 10. COMMITMENTS AND CONTINGENCIES In 2013, the State of Connecticut (“the State”) awarded our Company up to $11.5 million ($8.0 million in loans and $3.5 million in grants) to move our corporate headquarters to Stamford, Connecticut. The loan is non-interest bearing, has a term of 10 years and is subject to forgiveness based on our compliance with certain conditions set forth in the agreement with the State. The amount of the loan to be received and forgiven is dependent on our Company reaching certain milestones for creation and retention of new jobs over a five-year period, and the funds are to be used to offset certain equipment purchases, facility costs, training of employees and other eligible project-related costs. As of March 31, 2019, our Company has received all of the award and earned a loan forgiveness credit of $7.0 million with the State. Our Company is recognizing the amount of loan and grants received over the period in which offsetting expenses are recognized. Our Company recognized $0.3 million and $0.4 million of the incentive for the three months ended March 31, 2019 and 2018, respectively. As of March 31, 2019 and December 31, 2018, our Company has deferred revenue of $4.4 million and $4.7 million, respectively, which is included in Other Liabilities on the Consolidated Balance Sheets. On February 16, 2017, our Company entered into a guarantee, pursuant to which it guaranteed all of the liabilities and obligations of NIIC (the “Guarantee”). The Guarantee will remain effective until all of such liabilities and obligations are discharged, and in the event that our Company does not meet its obligations under the Guarantee, any person who is covered by an insurance policy, certificate of coverage or reinsurance contract issued by NIIC will be a third party beneficiary under the Guarantee. Our Company’s obligations under the Guarantee may be terminated by providing twelve months prior written notice to NIIC. However the obligations of our Company under the Guarantee terminate immediately in the event that (i) the majority of the outstanding voting capital stock in NIIC is sold to any non-affiliated entity; (ii) A.M. Best has confirmed that NIIC will receive the same financial strength rating as NIC or NSIC, without the benefit of the Guarantee; or (iii) NIIC withdraws its request to be rated by A.M. Best, provided that NIIC has not been downgraded within the prior twelve months. On August 22, 2018, our Company entered into a Merger Agreement with The Hartford. In accordance with the terms of the Merger Agreement, our Company would be obligated to pay The Hartford a $68.25 million termination fee if the Merger Agreement is terminated for certain reasons outlined in the Merger Agreement. In the ordinary course of conducting business, our Parent Company’s subsidiaries are involved in various legal proceedings. Most of these proceedings consist of claims litigation involving our Parent Company’s subsidiaries as either: (a) liability insurers defending or providing indemnity for third party claims brought against insureds or (b) insurers defending first party coverage claims brought against them. In general, our Company believes we have valid defenses to these cases. Our Company’s management believes that the ultimate liability, if any, with respect to these legal proceedings, after consideration of provisions made for potential losses and cost of defense, will not be material to our Company’s Consolidated Balance Sheets, Statements of Income and Statements of Cash Flows.

Commitments and Contingencies

3 Months Ended

Mar. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

NOTE 10. COMMITMENTS AND CONTINGENCIES

In 2013, the State of Connecticut (“the State”) awarded our Company up to $11.5 million ($8.0 million in loans and $3.5 million in grants) to move our corporate headquarters to Stamford, Connecticut. The loan is non-interest bearing, has a term of 10 years and is subject to forgiveness based on our compliance with certain conditions set forth in the agreement with the State. The amount of the loan to be received and forgiven is dependent on our Company reaching certain milestones for creation and retention of new jobs over a five-year period, and the funds are to be used to offset certain equipment purchases, facility costs, training of employees and other eligible project-related costs. As of March 31, 2019, our Company has received all of the award and earned a loan forgiveness credit of $7.0 million with the State. Our Company is recognizing the amount of loan and grants received over the period in which offsetting expenses are recognized. Our Company recognized $0.3 million and $0.4 million of the incentive for the three months ended March 31, 2019 and 2018, respectively. As of March 31, 2019 and December 31, 2018, our Company has deferred revenue of $4.4 million and $4.7 million, respectively, which is included in Other Liabilities on the Consolidated Balance Sheets.

On February 16, 2017, our Company entered into a guarantee, pursuant to which it guaranteed all of the liabilities and obligations of NIIC (the “Guarantee”). The Guarantee will remain effective until all of such liabilities and obligations are discharged, and in the event that our Company does not meet its obligations under the Guarantee, any person who is covered by an insurance policy, certificate of coverage or reinsurance contract issued by NIIC will be a third party beneficiary under the Guarantee. Our Company’s obligations under the Guarantee may be terminated by providing twelve months prior written notice to NIIC. However the obligations of our Company under the Guarantee terminate immediately in the event that (i) the majority of the outstanding voting capital stock in NIIC is sold to any non-affiliated entity; (ii) A.M. Best has confirmed that NIIC will receive the same financial strength rating as NIC or NSIC, without the benefit of the Guarantee; or (iii) NIIC withdraws its request to be rated by A.M. Best, provided that NIIC has not been downgraded within the prior twelve months.

On August 22, 2018, our Company entered into a Merger Agreement with The Hartford. In accordance with the terms of the Merger Agreement, our Company would be obligated to pay The Hartford a $68.25 million termination fee if the Merger Agreement is terminated for certain reasons outlined in the Merger Agreement.

In the ordinary course of conducting business, our Parent Company’s subsidiaries are involved in various legal proceedings. Most of these proceedings consist of claims litigation involving our Parent Company’s subsidiaries as either: (a) liability insurers defending or providing indemnity for third party claims brought against insureds or (b) insurers defending first party coverage claims brought against them. In general, our Company believes we have valid defenses to these cases. Our Company’s management believes that the ultimate liability, if any, with respect to these legal proceedings, after consideration of provisions made for potential losses and cost of defense, will not be material to our Company’s Consolidated Balance Sheets, Statements of Income and Statements of Cash Flows.