National General (NTTNP) 10-Q 29 Apr 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Statement - $ / shares	3 Months Ended
	Mar. 31, 2020	Apr. 27, 2020
Document Information
Document Type	10-Q
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0001578735
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-36311
Entity Registrant Name	NATIONAL GENERAL HOLDINGS CORP.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-1046208
Entity Address, Address Line One	59 Maiden Lane
Entity Address, Address Line Two	38th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10038
City Area Code	212
Local Phone Number	380-9500
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Listing, Par Value Per Share	$ 0.01
Entity Common Stock, Shares Outstanding		113,750,129
Common Stock, par value $0.01 per share
Document Information
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	NGHC
Security Exchange Name	NASDAQ
7.50% Non-Cumulative Preferred Stock, Series A
Document Information
Title of 12(b) Security	7.50% Non-Cumulative Preferred Stock, Series A
Trading Symbol	NGHCP
Security Exchange Name	NASDAQ
Depositary Shares, Representing 1/40th of a Share of 7.50% Non-Cumulative Preferred Stock, Series B
Document Information
Title of 12(b) Security	Depositary Shares, Representing 1/40th of a Share of 7.50% Non-Cumulative Preferred Stock, Series B
Trading Symbol	NGHCO
Security Exchange Name	NASDAQ
Depositary Shares, Representing 1/40th of a Share of 7.50% Non-Cumulative Preferred Stock, Series C
Document Information
Title of 12(b) Security	Depositary Shares, Representing 1/40th of a Share of 7.50% Non-Cumulative Preferred Stock, Series C
Trading Symbol	NGHCN
Security Exchange Name	NASDAQ
7.625% Subordinated Notes due 2055
Document Information
Title of 12(b) Security	7.625% Subordinated Notes due 2055
Trading Symbol	NGHCZ
Security Exchange Name	NASDAQ

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investments:
Debt securities, available-for-sale, at fair value (allowance for expected credit losses $2,927 - 2020) (Exchanges - $313,743 and $324,249; allowance for expected credit losses $298 - 2020)	$ 4,382,254	$ 4,476,358
Short-term investments (Exchanges - $19,778 and $5,245)	70,761	67,353
Other investments (related parties - $235,843 and $238,841)	287,683	311,287
Total investments	4,740,698	4,854,998
Cash and cash equivalents (Exchanges - $0 and $959)	309,802	135,942
Restricted cash and cash equivalents (Exchanges - $116 and $24)	30,070	28,521
Accrued investment income (related parties - $1,203 and $2,391) (Exchanges - $2,152 and $2,001)	26,131	30,927
Premiums and other receivables (net of allowance for expected credit losses $27,114 - 2020; net of bad debt allowance $24,067 - 2019) (Exchanges - $49,344 and $55,859; net of allowance for expected credit losses $1,013 - 2020; net of bad debt allowance $541 - 2019)	1,541,760	1,428,948
Deferred acquisition costs (Exchanges - $22,737 and $23,307)	277,368	263,523
Reinsurance recoverable (net of allowance for expected credit losses $517 - 2020) (Exchanges - $119,508 and $119,125; net of allowance for expected credit losses $173 - 2020)	1,401,681	1,394,308
Prepaid reinsurance premiums (Exchanges - $91,003 and $105,894)	511,648	575,747
Property and equipment, net (Exchanges - $93 and $241)	398,161	403,827
Intangible assets, net (Exchanges - $3,180 and $3,225)	357,568	365,823
Goodwill	179,328	179,328
Prepaid and other assets (Exchanges - $4,110 and $3,521)	86,359	94,642
Total assets	9,860,574	9,756,534
Liabilities:
Unpaid loss and loss adjustment expense reserves (Exchanges - $197,934 and $205,786)	2,848,193	2,886,414
Unearned premiums and other revenue (Exchanges - $232,538 and $252,553)	2,376,375	2,312,241
Reinsurance payable (Exchanges - $38,353 and $35,689)	553,982	562,844
Accounts payable and accrued expenses (Exchanges - $5,746 and $8,497)	313,638	315,366
Debt	685,078	686,006
Other liabilities (Exchanges - $41,266 and $30,803)	411,820	376,169
Total liabilities	7,189,086	7,139,040
Stockholders’ equity:
Common stock, $0.01 par value - authorized 150,000,000 shares, issued and outstanding 113,708,996 shares - 2020; authorized 150,000,000 shares, issued and outstanding 113,368,811 shares - 2019.	1,137	1,134
Preferred stock, $0.01 par value - authorized 10,000,000 shares, issued and outstanding 2,565,120 shares - 2020; authorized 10,000,000 shares, issued and outstanding 2,565,120 shares - 2019. Aggregate liquidation preference $450,000 - 2020, $450,000 - 2019.	450,000	450,000
Additional paid-in capital	1,066,075	1,065,634
Accumulated other comprehensive income:
Unrealized foreign currency translation adjustment, net of tax	(472)	(202)
Unrealized gain on investments, net of tax	44,317	74,750
Total accumulated other comprehensive income	43,845	74,548
Retained earnings	1,144,473	1,058,138
Total National General Holdings Corp. Stockholders’ Equity	2,705,530	2,649,454
Noncontrolling interest	(34,042)	(31,960)
Total stockholders’ equity	2,671,488	2,617,494
Total liabilities and stockholders’ equity	$ 9,860,574	$ 9,756,534

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt securities, available-for-sale	$ 4,382,254	$ 4,476,358
Short-term investments	70,761	67,353
Cash and cash equivalents	309,802	135,942
Other investments	287,683	311,287
Restricted cash and cash equivalents	30,070	28,521
Accrued investment income	26,131	30,927
Premiums and other receivables, net	1,541,760	1,428,948
Deferred acquisition costs	277,368	263,523
Reinsurance recoverable, net	1,401,681	1,394,308
Prepaid reinsurance premiums	511,648	575,747
Premises and equipment, net	398,161	403,827
Intangible assets, net	357,568	365,823
Prepaid and other assets	86,359	94,642
Unpaid loss and loss adjustment expense reserves	2,848,193	2,886,414
Unearned premiums and other revenue	2,376,375	2,312,241
Reinsurance payable	553,982	562,844
Accounts payable and accrued expenses	313,638	315,366
Other liabilities	$ 411,820	$ 376,169
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	113,708,996	113,368,811
Common stock, shares outstanding	113,708,996	113,368,811
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Shares of preferred stock issued	2,565,120	2,565,120
Preferred stock, shares outstanding	2,565,120	2,565,120
Aggregate liquidation preference	$ 450,000	$ 450,000
Debt securities, available-for sale, allowance for expected credit losses	2,927	0
Premiums and other receivables, allowance for expected credit losses	27,114	24,067
Reinsurance recoverable, allowance for expected credit losses	517	0
Reciprocal Exchanges
Debt securities, available-for-sale	313,743	324,249
Short-term investments	19,778	5,245
Cash and cash equivalents	0	959
Restricted cash and cash equivalents	116	24
Accrued investment income	2,152	2,001
Premiums and other receivables, net	49,344	55,859
Deferred acquisition costs	22,737	23,307
Reinsurance recoverable, net	119,508	119,125
Prepaid reinsurance premiums	91,003	105,894
Premises and equipment, net	93	241
Intangible assets, net	3,180	3,225
Prepaid and other assets	4,110	3,521
Unpaid loss and loss adjustment expense reserves	197,934	205,786
Unearned premiums and other revenue	232,538	252,553
Reinsurance payable	38,353	35,689
Accounts payable and accrued expenses	5,746	8,497
Other liabilities	41,266	30,803
Debt securities, available-for sale, allowance for expected credit losses	298
Premiums and other receivables, allowance for expected credit losses	1,013	541
Reinsurance recoverable, allowance for expected credit losses	173
Related Parties
Other investments	235,843	238,841
Accrued investment income	$ 1,203	$ 2,391

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Net earned premium	$ 1,075,206	$ 964,157
Ceding commission income	50,305	69,534
Service and fee income	179,441	165,507
Net investment income	30,243	33,445
Net gain (loss) on Investments	(6,861)	22
Total revenues	1,328,334	1,232,665
Expenses:
Loss and loss adjustment expense	691,998	651,809
Acquisition costs and other underwriting expenses	228,242	211,918
General and administrative expenses	267,569	248,094
Interest expense	11,780	12,999
Total expenses	1,199,589	1,124,820
Income before provision for income taxes	128,745	107,845
Provision for income taxes	28,172	22,506
Net income	100,573	85,339
Net loss attributable to noncontrolling interest	186	6,419
Net income attributable to NGHC	100,759	91,758
Dividends on preferred stock	(7,875)	(7,875)
Net income attributable to NGHC common stockholders	$ 92,884	$ 83,883
Earnings per common share (“EPS”):
Basic EPS	$ 0.82	$ 0.74
Diluted EPS	$ 0.80	$ 0.72

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 100,573	$ 85,339
Other comprehensive income:
Foreign currency translation adjustment	(342)	(4,253)
Income tax effect	72	889
Total foreign currency translation adjustment, net of tax	(270)	(3,364)
Gross unrealized gain (loss) on investments before reclassifications	(43,400)	76,785
Income tax effect	9,114	(16,125)
Total change in net unrealized gain (loss) on investments, net of tax	(34,286)	60,660
Reclassification adjustments for investments gain or loss to net income:
Net realized loss on investments	2,663	120
Income tax effect	(559)	(25)
Total loss on investments reclassifications to net income, net of tax	2,104	95
Other comprehensive income (loss) before income tax effect	(41,079)	72,652
Income tax effect	8,627	(15,261)
Other comprehensive income (loss), net of tax	(32,452)	57,391
Comprehensive income	68,121	142,730
Comprehensive loss attributable to noncontrolling interest	1,935	1,739
Comprehensive income attributable to NGHC	$ 70,056	$ 144,469

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common stock	Preferred stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Non-controlling Interest
Common stock, shares outstanding, beginning balance at Dec. 31, 2018		112,940,595
Common stock, amount, beginning balance at Dec. 31, 2018		$ 1,129
Preferred stock, shares outstanding, beginning balance at Dec. 31, 2018			2,565,120
Preferred stock, amount, beginning balance at Dec. 31, 2018			$ 450,000
Total stockholders' equity, amount, beginning balance at Dec. 31, 2018	$ 2,200,871			$ 1,057,783	$ (52,130)	$ 764,056	$ (19,967)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	85,339					91,758	(6,419)
Foreign currency translation adjustment, net of tax	(3,364)				(3,364)
Change in unrealized gain (loss) on investments, net of tax	60,755				56,075		4,680
Common stock dividends declared	(4,524)					(4,524)
Preferred stock dividends declared	(7,875)					(7,875)
Common stock issued under employee stock plans and exercises of stock options		292,276
Common stock issued under employee stock plans and exercises of stock options, value	93	$ 2		91
Shares withheld related to net share settlement, shares		(95,525)
Shares withheld related to net share settlement, value	(2,435)			(2,435)
Stock-based compensation	2,622			2,622
Common stock, shares outstanding, ending balance at Mar. 31, 2019		113,137,346
Common stock, amount, ending balance at Mar. 31, 2019		$ 1,131
Preferred stock, shares outstanding, ending balance at Mar. 31, 2019			2,565,120
Preferred stock, amount, ending balance at Mar. 31, 2019			$ 450,000
Total stockholders' equity, amount, ending balance at Mar. 31, 2019	$ 2,331,482			1,058,061	581	843,415	(21,706)
Common stock, shares outstanding, beginning balance at Dec. 31, 2019	113,368,811	113,368,811
Common stock, amount, beginning balance at Dec. 31, 2019		$ 1,134
Preferred stock, shares outstanding, beginning balance at Dec. 31, 2019	2,565,120		2,565,120
Preferred stock, amount, beginning balance at Dec. 31, 2019			$ 450,000
Total stockholders' equity, amount, beginning balance at Dec. 31, 2019	$ 2,617,494			1,065,634	74,548	1,058,138	(31,960)
Total stockholders' equity, amount, beginning balance (Accounting Standards Update 2016-13) at Dec. 31, 2019	(1,010)					(863)	(147)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	100,573					100,759	(186)
Foreign currency translation adjustment, net of tax	(270)				(270)
Change in unrealized gain (loss) on investments, net of tax	(32,182)				(30,433)		(1,749)
Common stock dividends declared	(5,686)					(5,686)
Preferred stock dividends declared	(7,875)					(7,875)
Common stock issued under employee stock plans and exercises of stock options		487,414
Common stock issued under employee stock plans and exercises of stock options, value	388	$ 3		385
Shares withheld related to net share settlement, shares		(147,229)
Shares withheld related to net share settlement, value	(3,106)			(3,106)
Stock-based compensation	$ 3,162			3,162
Common stock, shares outstanding, ending balance at Mar. 31, 2020	113,708,996	113,708,996
Common stock, amount, ending balance at Mar. 31, 2020		$ 1,137
Preferred stock, shares outstanding, ending balance at Mar. 31, 2020	2,565,120		2,565,120
Preferred stock, amount, ending balance at Mar. 31, 2020			$ 450,000
Total stockholders' equity, amount, ending balance at Mar. 31, 2020	$ 2,671,488			$ 1,066,075	$ 43,845	$ 1,144,473	$ (34,042)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 100,573	$ 85,339
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Net (gain) loss on investments	6,861	(22)
Credit loss expense	25,766	20,967
Depreciation and amortization	21,278	27,135
Stock-based compensation expense	3,162	2,622
Other, net	6,483	(1,251)
Changes in assets and liabilities:
Accrued investment income	4,020	658
Premiums and other receivables	(139,339)	(228,239)
Deferred acquisition costs	(13,846)	(17,020)
Reinsurance recoverable	(7,889)	121,500
Prepaid reinsurance premiums	64,099	28,058
Prepaid expenses and other assets	8,551	82,591
Unpaid loss and loss adjustment expense reserves	(38,221)	(83,073)
Unearned premiums and other revenue	64,134	161,680
Reinsurance payable	(8,862)	(130,353)
Accounts payable and accrued expenses	6,623	9,458
Other liabilities	40,656	35,160
Net cash provided by operating activities	144,049	115,210
Cash flows from investing activities:
Purchases of debt securities, available-for-sale	(90,283)	(94,525)
Purchases of short-term investments	(194,423)	(678,000)
Purchases of other investments	(2,579)	(110)
Purchases of property and equipment	(9,818)	(57,622)
Proceeds from sale of debt securities, available-for-sale	25,566	21,066
Proceeds from maturities of debt securities, available-for-sale	111,439	62,072
Proceeds from sale of short-term investments	191,188	637,682
Proceeds from sale and return of other investments	20,694	2,805
Net cash provided by (used in) investing activities	51,784	(106,632)
Cash flows from financing activities:
Payments of debt issuance costs	0	(1,726)
Repayments of debt and principal payments under capital leases obligations	(3,112)	(3,034)
Issuance of common stock — employee share options	388	93
Taxes paid related to net share settlement of equity awards	(3,106)	(2,435)
Dividends paid to common shareholders	(5,669)	(4,518)
Dividends paid to preferred shareholders	(8,925)	(8,867)
Net cash used in financing activities	(20,424)	(20,487)
Effect of exchange rate changes on cash and cash equivalents	0	(1,402)
Net increase (decrease) in cash, cash equivalents, and restricted cash	175,409	(13,311)
Cash, cash equivalents, and restricted cash at beginning of the period	164,463	233,583
Cash, cash equivalents, and restricted cash at end of the period	339,872	220,272
Common stock
Dividends Payable
Dividends Payable	5,686	4,524
Preferred stock
Dividends Payable
Dividends Payable	$ 7,875	$ 7,875

Basis of Reporting

Basis of Reporting	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Reporting	Basis of Reporting The accompanying unaudited interim condensed consolidated financial statements include the accounts of National General Holdings Corp. and its subsidiaries (the “Company” or “NGHC”) and have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the U.S. Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These interim condensed consolidated financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, previously filed with the SEC on February 20, 2020. The balance sheet at December 31, 2019, has been derived from the audited consolidated financial statements at that date. These interim condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the results for the interim period and all such adjustments are of a normal recurring nature. The results of operations for the interim period are not necessarily indicative, if annualized, of those to be expected for the full year. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The unaudited condensed consolidated financial statements include the accounts and operations of Adirondack Insurance Exchange, a New York reciprocal insurer, and New Jersey Skylands Insurance Association, a New Jersey reciprocal insurer (together with their subsidiaries, the “Reciprocal Exchanges” or “Exchanges”); variable interest entities (“VIE”s) of which the Company is the primary beneficiary. The Company has no ownership interest in the Reciprocal Exchanges but is paid a fee to manage their business operations and has the ability to direct their activities through its wholly-owned management companies. The Reciprocal Exchanges are property and casualty insurers. A detailed description of the Company’s significant accounting policies and management judgments is located in the notes to the audited consolidated financial statements, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC. In March 2020, the outbreak of COVID-19 caused by a novel strain of the coronavirus was recognized as a pandemic by the World Health Organization. The pandemic outbreak has caused an economic downturn on a global scale. The Company continues to monitor the impact of the pandemic as it unfolds. The Company cannot, at this time, predict the impact the pandemic will have on its future consolidated financial position, cash flows or results of operations.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted During 2020 Standard Description Date of Adoption Effect on the Company ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, and related amendments. This standard changes the impairment model to a new forward-looking expected loss model for most financial assets and certain other instruments. The standard requires immediate recognition of estimated credit losses expected to occur over the remaining life of many financial assets, which will generally result in earlier recognition of allowances for credit losses on loans and other financial instruments. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. The Company will continue to use judgement to determine which loss estimation method is appropriate for their circumstances. The standard is effective for interim and annual reporting periods beginning after December 15, 2019 and requires using a modified retrospective approach, recognizing a cumulative-effect adjustment as of the beginning of the first reporting period in which the standard is effective. January 1, 2020 The Company adopted ASU 2016-13 using the modified retrospective approach and recorded a cumulative-effect adjustment of $1,010 to the opening balance of retained earnings and increased the allowance for premiums receivable and reinsurance recoverable by the same amount. ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This standard establishes a one-step process for testing the value of the goodwill which an entity carries. ASU 2017-04 requires the goodwill impairment to be measured as the excess of the reporting unit’s carrying amount over its fair value. January 1, 2020 The adoption of the standard did not have a material impact on the Company’s condensed consolidated financial statements. With the exception of the adopted accounting pronouncements discussed above, there have been no recent accounting pronouncements, or quantitative or qualitative progress made toward implementation of outstanding accounting pronouncements during the three months ended March 31, 2020, as compared to those described in Note 2, “Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, that are of significance, or potential significance, to the Company. Accounting Policies The following accounting policies have been updated to reflect the Company's adoption of Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments as described above. Investment Impairments The Company conducts a periodic review to identify and evaluate invested assets that may have credit impairments. Beginning on January 1, 2020, credit losses on available-for-sale debt securities are recognized through an allowance account. See Note 4, “Investments” for additional information. The Company reports investment income accrued separately from debt securities, available for sale, and has elected not to measure an allowance for credit losses for investment income accrued. Investment income accrued is written off by reversing interest income through net investment income at the time the issuer of the bond defaults or is expected to default on payments. Uncollectible available-for-sale debt securities are written-off to net gain (loss) on investments when the Company determines that no additional payments of principal or interest will be received. Premiums and Other Receivables Premium and other receivables are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, historical loss data, including delinquencies and write-offs, current and forecasted economic conditions, and other relevant factors. Credit risk is partially mitigated by the Company’s ability to cancel the policy if the policyholder does not pay the premium. Reinsurance Recoverable Amounts recoverable from reinsurers are estimated in a manner consistent with the associated claim liability. The Company reports its reinsurance recoverable net of an allowance for estimated uncollectible reinsurance. The allowance is based upon the Company’s ongoing review of amounts outstanding, length of collection periods, changes in reinsurer credit standing, disputes, applicable coverage defenses, and other relevant factors. The Company evaluates and monitors the financial condition of its reinsurers under voluntary reinsurance arrangements to minimize its exposure to significant losses from reinsurer insolvencies.

Allowance for Expected Credit L

Allowance for Expected Credit Losses	3 Months Ended
	Mar. 31, 2020
Credit Loss [Abstract]
Allowance for Expected Credit Losses	Allowance for Expected Credit Losses Premiums and Other Receivables The following table presents the balances of premiums and other receivables, net of the allowance for expected credit losses, as of March 31, 2020 and January 1, 2020, and changes in the allowance for expected credit losses for the three months ended March 31, 2020. Premiums and Other Receivables, Net of Allowance for Expected Credit Losses Allowance for Expected Credit Losses Balance, beginning of the period $ 1,428,948 $ 24,067 Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020 762 Current period change for expected credit losses (1) 25,766 Write-offs of uncollectible premiums and other receivables (23,481) Balance, end of the period $ 1,541,760 $ 27,114 (1) Current period charges for expected losses are recorded in general and administrative expenses. Reinsurance Recoverable The following table presents the balances of reinsurance recoverable, net of the allowance for estimated uncollectible reinsurance, as of March 31, 2020 and January 1, 2020, and changes in the allowance for estimated uncollectible reinsurance for the three months ended March 31, 2020. Reinsurance Receivable, Net of Allowance for Expected Credit Losses Allowance for Expected Credit Losses Balance, beginning of the period $ 1,394,308 $ — Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020 517 Current period change for estimated uncollectible reinsurance — Write-offs of uncollectible reinsurance — Balance, end of the period $ 1,401,681 $ 517 Other than the Company’s mandatory pools and associations reinsurance agreements and before allowances for estimated uncollectible reinsurance, the Company’s reinsurers generally carry at least an A.M. Best rating of “A-” (Excellent) or the reinsurance recoverable balances are collateralized.

Investments

Investments	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investments	Investments (a) Available-For-Sale Debt Securities The following table summarizes the unrealized positions for available-for-sale debt securities, disaggregated by major security type. Amortized Allowance for Gross Unrealized Fair March 31, 2020 Cost Credit Losses (1) Gains Losses Value U.S. Treasury $ 56,656 $ — $ 4,398 $ — $ 61,054 Federal agencies 3,907 — 14 — 3,921 States and political subdivision bonds 292,734 — 8,931 (32) 301,633 Foreign government 1,762 — — (38) 1,724 Corporate bonds 1,922,412 (2,927) 35,738 (31,790) 1,923,433 Residential mortgage-backed securities 1,206,548 — 44,174 (1,416) 1,249,306 Commercial mortgage-backed securities 583,502 — 29,723 (1,856) 611,369 Asset-backed securities 48,993 — 261 (1,348) 47,906 Structured securities 209,680 — — (27,772) 181,908 Total $ 4,326,194 $ (2,927) $ 123,239 $ (64,252) $ 4,382,254 NGHC $ 4,014,997 $ (2,629) $ 115,574 $ (59,431) $ 4,068,511 Reciprocal Exchanges 311,197 (298) 7,665 (4,821) 313,743 Total $ 4,326,194 $ (2,927) $ 123,239 $ (64,252) $ 4,382,254 (1) Represents the amount of impairment that has resulted from credit-related factors recorded in net gain (loss) on investments. Amortized Gross Unrealized Fair December 31, 2019 Cost Gains Losses Value U.S. Treasury $ 65,037 $ 1,992 $ (23) $ 67,006 Federal agencies 3,907 8 — 3,915 States and political subdivision bonds 298,345 4,778 (1,441) 301,682 Foreign government 1,762 40 — 1,802 Corporate bonds 1,859,736 59,184 (2,357) 1,916,563 Residential mortgage-backed securities 1,265,830 15,747 (4,117) 1,277,460 Commercial mortgage-backed securities 585,044 27,261 (112) 612,193 Asset-backed securities 74,465 1,194 (48) 75,611 Structured securities 222,565 226 (2,665) 220,126 Total $ 4,376,691 $ 110,430 $ (10,763) $ 4,476,358 NGHC $ 4,057,501 $ 104,951 $ (10,343) $ 4,152,109 Reciprocal Exchanges 319,190 5,479 (420) 324,249 Total $ 4,376,691 $ 110,430 $ (10,763) $ 4,476,358 The amortized cost and fair value of available-for-sale debt securities held as of March 31, 2020, by contractual maturity, are shown in the table below. Actual maturities may differ from contractual maturities because some borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. NGHC Reciprocal Exchanges Total March 31, 2020 Amortized Fair Amortized Fair Amortized Fair Due in one year or less $ 58,383 $ 58,583 $ 110 $ 110 $ 58,493 $ 58,693 Due after one year through five years 1,002,735 1,006,418 127,214 128,065 1,129,949 1,134,483 Due after five years through ten years 983,649 977,567 79,997 78,303 1,063,646 1,055,870 Due after ten years 219,712 209,612 15,351 15,015 235,063 224,627 Mortgage-backed securities 1,750,518 1,816,331 88,525 92,250 1,839,043 1,908,581 Total $ 4,014,997 $ 4,068,511 $ 311,197 $ 313,743 $ 4,326,194 $ 4,382,254 (b) Gross Unrealized Losses The tables below summarize the gross unrealized losses on debt securities classified as available-for-sale, by length of time the security has continuously been in an unrealized loss position. Less Than 12 Months 12 Months or More Total March 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized States and political subdivision bonds $ 7,204 $ (28) $ 908 $ (4) $ 8,112 $ (32) Foreign government 1,724 (38) — — 1,724 (38) Corporate bonds 891,346 (31,790) — — 891,346 (31,790) Residential mortgage-backed securities 41,121 (1,416) — — 41,121 (1,416) Commercial mortgage-backed securities 55,768 (1,856) — — 55,768 (1,856) Asset-backed securities 32,912 (1,326) 233 (22) 33,145 (1,348) Structured securities 123,710 (14,710) 58,198 (13,062) 181,908 (27,772) Total $ 1,153,785 $ (51,164) $ 59,339 $ (13,088) $ 1,213,124 $ (64,252) NGHC $ 1,027,271 $ (46,838) $ 55,834 $ (12,593) $ 1,083,105 $ (59,431) Reciprocal Exchanges 126,514 (4,326) 3,505 (495) 130,019 (4,821) Total $ 1,153,785 $ (51,164) $ 59,339 $ (13,088) $ 1,213,124 $ (64,252) Less Than 12 Months 12 Months or More Total December 31, 2019 Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury $ 19,903 $ (23) $ 500 $ — $ 20,403 $ (23) States and political subdivision bonds 106,103 (1,415) 2,580 (26) 108,683 (1,441) Corporate bonds 586,817 (2,253) 5,976 (104) 592,793 (2,357) Residential mortgage-backed securities 410,484 (4,074) 3,983 (43) 414,467 (4,117) Commercial mortgage-backed securities 18,250 (105) 748 (7) 18,998 (112) Asset-backed securities 5,406 (29) 920 (19) 6,326 (48) Structured securities 40,979 (94) 109,880 (2,571) 150,859 (2,665) Total $ 1,187,942 $ (7,993) $ 124,587 $ (2,770) $ 1,312,529 $ (10,763) NGHC $ 1,104,244 $ (7,654) $ 117,681 $ (2,689) $ 1,221,925 $ (10,343) Reciprocal Exchanges 83,698 (339) 6,906 (81) 90,604 (420) Total $ 1,187,942 $ (7,993) $ 124,587 $ (2,770) $ 1,312,529 $ (10,763) The Company’s debt securities portfolio is sensitive to interest rate fluctuations, which impact the fair value of individual securities. Unrealized losses on debt securities reported above were primarily caused by the effects of the interest rate environment and the market impacts of COVID-19. There were 1,663 and 1,337 individual security lots at March 31, 2020 and December 31, 2019, respectively, that accounted for the gross unrealized loss. As of March 31, 2020 and December 31, 2019, the unrealized losses for those securities in unrealized loss positions for a period of twelve or more consecutive months were not greater than or equal to 25% of their amortized cost. The Company recorded a credit loss allowance of $2,927 on seven secur ities related to the energy sector. Some of the factors considered in assessing credit loss and impairment of fixed maturities due to credit-related factors include: (1) the magnitude of the unrealized loss in relation to the amortized cost; (2) the credit rating of the issuing entity and market or issuer events that could impact the issuer’s ability to repay the debt security; (3) the likelihood of the recoverability of principal and interest; and (4) whether it is more likely than not that the Company will be required to sell the investment prior to an anticipated recovery in value. The following table displays the roll forward of the allowance for credit losses for the period: Three Months Ended March 31, 2020 Corporate bonds Total Balance, beginning of the period $ — $ — Credit losses on securities not previously recorded 2,927 2,927 Balance, end of the period $ 2,927 $ 2,927 (c) Net Investment Income The components of net investment income consisted of the following: Three Months Ended March 31, 2020 2019 Cash and short-term investments $ 278 $ 1,497 Debt securities 32,102 29,467 Other, net (related parties - $(2,525) and $254) (768) 3,508 Investment income $ 31,612 $ 34,472 Investment expenses (1,369) (1,027) Net investment income $ 30,243 $ 33,445 NGHC $ 28,060 $ 31,275 Reciprocal Exchanges 2,183 2,170 Net investment income $ 30,243 $ 33,445 (d) Net Gain (Loss) on Investments The table below indicates realized gains and losses on investments. Other, net includes realized gains and losses from short-term and other investments and foreign exchange. Purchases and sales of investments are recorded on a trade date basis. Realized gains and losses are determined based on the specific identification method. Three Months Ended March 31, 2020 2019 Debt securities, available-for-sale: Gross gains $ 273 $ 136 Gross losses (9) (256) Credit allowance (2,927) — Net realized loss on debt securities, available-for-sale (2,663) (120) Other, net (1) (4,198) 142 Net realized gain (loss) on investments $ (6,861) $ 22 NGHC $ (6,068) $ 766 Reciprocal Exchanges (793) (744) Net realized gain (loss) on investments $ (6,861) $ 22 (1) Includes gains and losses on publicly traded equities and foreign currency. (e) Credit Quality of Investments The tables below summarize the credit quality of debt securities, as rated by Standard & Poor’s (“S&P”). If a security is not rated by S&P, an S&P equivalent is determined based on ratings from similar rating agencies. Securities that are not rated are included in the “BB+ and lower” category. NGHC Reciprocal Exchanges March 31, 2020 Amortized Fair Percentage Amortized Fair Percentage U.S. Treasury $ 43,695 $ 47,084 1.2 % $ 12,961 $ 13,970 4.5 % AAA 528,158 543,778 13.4 % 20,845 21,169 6.7 % AA, AA+, AA- 1,618,321 1,675,017 41.2 % 115,089 118,870 37.9 % A, A+, A- 966,417 960,982 23.6 % 108,416 108,375 34.5 % BBB, BBB+, BBB- 830,937 817,798 20.1 % 52,986 50,862 16.2 % BB+ and lower 27,469 23,852 0.5 % 900 497 0.2 % Total $ 4,014,997 $ 4,068,511 100.0 % $ 311,197 $ 313,743 100.0 % NGHC Reciprocal Exchanges December 31, 2019 Amortized Fair Percentage Amortized Fair Percentage U.S. Treasury $ 52,108 $ 53,599 1.3 % $ 12,929 $ 13,407 4.1 % AAA 515,869 537,508 12.9 % 20,947 21,555 6.6 % AA, AA+, AA- 1,677,787 1,697,220 40.9 % 120,113 121,720 37.5 % A, A+, A- 954,312 976,468 23.5 % 116,747 119,041 36.7 % BBB, BBB+, BBB- 795,594 823,239 19.8 % 48,021 48,093 14.8 % BB+ and lower 61,831 64,075 1.6 % 433 433 0.3 % Total $ 4,057,501 $ 4,152,109 100.0 % $ 319,190 $ 324,249 100.0 % The tables below summarize the investment quality of the corporate bond holdings and industry concentrations. March 31, 2020 AAA AA+, A+,A,A- BBB+, BB+ or Fair % of Financial Institutions — % 3.5 % 26.0 % 12.5 % 0.3 % $ 813,631 42.3 % Industrials 0.7 % 2.6 % 22.5 % 29.3 % 0.3 % 1,065,463 55.4 % Utilities/Other — % — % 1.0 % 1.3 % — % 44,339 2.3 % Total 0.7 % 6.1 % 49.5 % 43.1 % 0.6 % $ 1,923,433 100.0 % NGHC 0.3 % 4.9 % 43.9 % 40.5 % 0.6 % $ 1,734,990 90.2 % Reciprocal Exchanges 0.4 % 1.2 % 5.6 % 2.6 % — % 188,443 9.8 % Total 0.7 % 6.1 % 49.5 % 43.1 % 0.6 % $ 1,923,433 100.0 % December 31, 2019 AAA AA+, A+,A,A- BBB+, BB+ or Fair % of Financial Institutions — % 3.6 % 25.0 % 12.1 % 0.3 % $ 785,910 41.0 % Industrials 0.7 % 2.7 % 24.1 % 29.0 % 0.1 % 1,083,959 56.6 % Utilities/Other — % — % 1.0 % 1.4 % — % 46,694 2.4 % Total 0.7 % 6.3 % 50.1 % 42.5 % 0.4 % $ 1,916,563 100.0 % NGHC 0.3 % 5.1 % 44.0 % 40.0 % 0.4 % $ 1,720,962 89.8 % Reciprocal Exchanges 0.4 % 1.2 % 6.1 % 2.5 % — % 195,601 10.2 % Total 0.7 % 6.3 % 50.1 % 42.5 % 0.4 % $ 1,916,563 100.0 % (f) Cash and Cash Equivalents, Restricted Cash and Restricted Investments The Company, in order to conduct business in certain states, is required to maintain letters of credit or assets on deposit to support state mandated regulatory requirements and certain third-party agreements. The Company also utilizes trust accounts to collateralize business with its reinsurance counterparties. These assets are held primarily in the form of cash or certain high grade securities. Cash, cash equivalents, and restricted cash are as follows: March 31, 2020 December 31, 2019 Cash and cash equivalents $ 309,802 $ 135,942 Restricted cash and cash equivalents 30,070 28,521 Total cash, cash equivalents and restricted cash $ 339,872 $ 164,463 Restricted investments are as follows: March 31, 2020 December 31, 2019 Securities on deposit with state regulatory authorities $ 81,809 $ 74,061 Restricted investments to trusts in certain reinsurance transactions 42,369 49,502 Total restricted investments $ 124,178 $ 123,563 (g) Short-term and Other Investments Short-term investments include commercial paper, U.S. Treasury bills and money market funds with maturities between 91 days and less than one year at the date of acquisition. The table below summarizes the composition of other investments: March 31, 2020 December 31, 2019 Equity method investments (related parties - $105,839 and $109,612) $ 140,897 $ 143,511 Notes receivable (related parties - $130,004 and $129,229) (1) 130,067 129,299 Long-term Certificates of Deposit (CDs), at cost 150 20,150 Investments, at fair value 7,661 9,365 Investments, at cost or amortized cost 8,908 8,962 Total $ 287,683 $ 311,287 (1) See Note 15, “Related Party Transactions” for additional information. Equity method investments represent limited liability companies and limited partnership investments in real estate. Investments at fair value include publicly traded equities and the Company’s right to receive the excess servicing spread related to servicing rights, for which the Company has elected the fair value option with changes in fair value recorded in earnings. Investments at cost or amortized cost, represent limited partnerships, loans and trusts. The Company believes its exposure to risk associated with these investments is generally limited to the investment carrying amounts . Other than investments at fair value, the Company’s other investments are assessed for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment might not be recoverable. Equity Method Investments - Related Parties The significant shareholder of the Company has an ownership interest in AmTrust Financial Services, Inc. (“AmTrust”) and ACP Re Ltd. (“ACP Re”). Limited Liability Companies and Limited Partnerships The Company holds a variable interest in the following entities but is not the VIE’s primary beneficiary. The Company accounts for these entities using the equity method of accounting. The Company believes its exposure to risk associated with these investments is generally limited to the investment carrying amounts. LSC Entity The Company has a 50% ownership interest in an entity (the “LSC Entity”) initially formed to acquire life settlement contracts, with AmTrust owning the remaining 50%. The LSC Entity used the contributed capital to pay premiums and purchase policies. A life settlement contract is a contract between the owner of a life insurance policy and a third party who obtains the ownership and beneficiary rights of the underlying life insurance policy. The LSC Entity has a 30% noncontrolling equity interest in a limited partnership managed by a third party. As of March 31, 2020, the LSC Entity directly held one life settlement contract. The life settlement contract is accounted for using the fair value method. The Company’s equity interest in the LSC Entity as of March 31, 2020 and December 31, 2019, was $45,291 and $49,477, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded equity in earnings (losses) from the LSC Entity of $(4,186) and $586, respectively. 800 Superior, LLC The Company holds an investment in 800 Superior, LLC, a limited liability company that owns an office building in Cleveland, Ohio, with AmTrust. AmTrust has been appointed managing member of 800 Superior, LLC. The Company and AmTrust each have a 50% ownership interest in 800 Superior, LLC. The Company’s equity interest in 800 Superior, LLC as of March 31, 2020 and December 31, 2019 was $9,487 and $9,365, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded equity in earnings (losses) from 800 Superior, LLC of $122 and $(293), respectively. The Company paid 800 Superior, LLC $761 and $742 in rent for the three months ended March 31, 2020 and 2019, respectively. North Dearborn Building Company, L.P. The Company holds an investment in North Dearborn Building Company, L.P. (“North Dearborn”), a limited partnership that owns an office building in Chicago, Illinois. AmTrust is also a limited partner in North Dearborn, and the general partner is NA Advisors GP LLC (“NA Advisors”), a related party, owned by Karfunkel family members which is managed by an unrelated third party. The Company and AmTrust each hold a 45% limited partnership interest in North Dearborn, while NA Advisors holds a 10% general partnership interest and a 10% profit interest, which NA Advisors pays to the unrelated third-party manager. North Dearborn appointed NA Advisors as the general manager to oversee the day-to-day operations of the office building. The Company’s equity interest in North Dearborn as of March 31, 2020 and December 31, 2019 was $5,702 and $5,317, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded equity in earnings (losses) from North Dearborn of $430 and $(28), respectively, and received distributions of $45 and $0, respectively. 4455 LBJ Freeway, LLC The Company holds an investment in 4455 LBJ Freeway, LLC, a limited liability company that owns an office building in Dallas, Texas, with AmTrust. AmTrust has been appointed managing member of 4455 LBJ Freeway, LLC. The Company and AmTrust each have a 50% ownership interest in 4455 LBJ Freeway, LLC. The Company’s equity interest in 4455 LBJ Freeway, LLC as of March 31, 2020 and December 31, 2019 was $1,234 and $1,074, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded equity in earnings (losses) from 4455 LBJ Freeway, LLC of $160 and $23, respectively. The Company paid 4455 LBJ Freeway, LLC $613 and $555 in rent for the three months ended March 31, 2020 and 2019, respectively. Illinois Center Building, L.P. The Company holds an investment in Illinois Center Building, L.P. (“Illinois Center”), a limited partnership that owns an office building in Chicago, Illinois. AmTrust and ACP Re are also limited partners in Illinois Center and the general partner is NA Advisors. The Company and AmTrust each hold a 37.5% limited partnership interest in Illinois Center, while ACP Re holds a 15.0% limited partnership interest. NA Advisors holds a 10.0% general partnership interest and a 10.0% profit interest, which NA Advisors pays to the unrelated third-party manager. Illinois Center appointed NA Advisors as the general manager to oversee the day-to-day operations of the office building. The Company’s equity interest in Illinois Center as of March 31, 2020 and December 31, 2019 was $44,125 and $44,379, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded equity in earnings (losses) from Illinois Center of $(254) and $(1,222), respectively.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company carries certain financial instruments at fair value. Assets and liabilities recorded at fair value in the Condensed Consolidated Balance Sheets are measured and classified in accordance with a fair value hierarchy consisting of three “levels” based on the observability of valuation inputs: Level 1 - Inputs are quoted prices in active markets for identical assets or liabilities as of the measurement date. Additionally, the entity must have the ability to access the active market and the quoted prices cannot be adjusted by the entity. Level 2 - Inputs are other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices in active markets for similar assets or liabilities; quoted prices in inactive markets for identical or similar assets or liabilities; or inputs that are observable or can be corroborated by observable market data by correlation or other means for substantially the full term of the assets or liabilities. Level 3 - Unobservable inputs are supported by little or no market activity. The unobservable inputs represent management’s best assumptions of how market participants would price the assets or liabilities. Generally, Level 3 assets and liabilities are valued using pricing models, discounted cash flow methodologies, or similar techniques that require significant judgment or estimation. The following describes the valuation techniques used by the Company to determine the fair value measurements on a recurring basis of financial instruments held as of March 31, 2020 and December 31, 2019. The Company utilizes a pricing service (“pricing service”) to estimate fair value measurements for all its debt and equity securities. Level 1 measurements: • U.S. Treasury and federal agencies. The fair values of U.S. government securities are based on quoted market prices in active markets. The Company believes the market for U.S. government securities is an actively traded market given the high level of daily trading volume. • Short-term investments. Comprised of money market funds that are traded in active markets and fair values are based on quoted market prices. • Other Investments, at fair value. Common and preferred equities. The pricing service utilizes market quotations for equity securities that have quoted market prices in active markets and their respective quoted prices are provided at fair value. Level 2 measurements: • States and political subdivision bonds, and foreign government. The primary inputs to the valuation include quoted prices for identical or similar assets in markets that are not active. • Corporate bonds. Comprised of bonds issued by corporations, public and privately placed. The fair values of short-term corporate bonds are priced using the spread above the London Interbank Offering Rate (“LIBOR”) yield curve, and the fair value of long-term corporate bonds are priced using the spread above the risk-free yield curve. The spreads are sourced from broker dealers, trade prices and the new issue market. Where pricing is unavailable from pricing services, the Company obtains non-binding quotes from broker-dealers. The primary inputs to the valuation include quoted prices for identical or similar assets in markets that are not active. • Residential and commercial mortgage-backed securities, asset-backed securities and structured securities. The primary inputs to the valuation include quoted prices for identical or similar assets in markets that are not active, contractual cash flows, benchmark yields, prepayment speeds, collateral performance and credit spreads. Level 3 measurements: • States and political subdivision bonds. The Company holds certain municipal bonds that finance economic development, infrastructure and environmental projects which do not have an active market. These bonds are valued based on non-binding broker quotes where the inputs have not been corroborated to be market observable. • Corporate bonds. The Company holds certain structured notes and term loans that do not have an active market. These bonds are valued based on non-binding broker quotes where the inputs have not been corroborated to be market observable. • Other investments, at fair value. Comprised of the Company’s right to receive the Excess Servicing Spread (“ESS”) related to servicing rights. The Company uses a discounted cash flow method to estimate the fair value of the ESS. The key inputs used in the estimation of ESS include prepayment speed and discount rate. Changes in the fair value of the ESS are recorded in earnings. • Other Investments, at cost or amortized cost. From time to time, the Company also holds certain equity securities that are issued by privately-held entities or direct equity investments that do not have an active market. The Company estimates the fair value of these securities primarily based on inputs such as third-party broker quotes, issuers’ book value, market multiples, and other inputs. These bonds are valued based on non-binding broker quotes where the inputs have not been corroborated to be market observable. Assets measured at fair value on a recurring basis are as follows: March 31, 2020 Level 1 Level 2 Level 3 Total Available-for-sale debt securities: U.S. Treasury $ 61,054 $ — $ — $ 61,054 Federal agencies 3,921 — — 3,921 States and political subdivision bonds — 298,533 3,100 301,633 Foreign government — 1,724 — 1,724 Corporate bonds — 1,914,951 8,482 1,923,433 Residential mortgage-backed securities — 1,249,306 — 1,249,306 Commercial mortgage-backed securities — 611,369 — 611,369 Asset-backed securities — 47,906 — 47,906 Structured securities — 181,908 — 181,908 Total available-for-sale debt securities 64,975 4,305,697 11,582 4,382,254 Short-term investments 50,262 20,499 — 70,761 Other investments 3,829 — 3,832 7,661 Total $ 119,066 $ 4,326,196 $ 15,414 $ 4,460,676 NGHC $ 84,817 $ 4,026,924 $ 15,414 $ 4,127,155 Reciprocal Exchanges 34,249 299,272 — 333,521 Total $ 119,066 $ 4,326,196 $ 15,414 $ 4,460,676 December 31, 2019 Level 1 Level 2 Level 3 Total Available-for-sale debt securities: U.S. Treasury $ 67,006 $ — $ — $ 67,006 Federal agencies 3,915 — — 3,915 States and political subdivision bonds — 298,582 3,100 301,682 Foreign government — 1,802 — 1,802 Corporate bonds — 1,908,235 8,328 1,916,563 Residential mortgage-backed securities — 1,277,460 — 1,277,460 Commercial mortgage-backed securities — 612,193 — 612,193 Asset-backed securities — 75,611 — 75,611 Structured securities — 220,126 — 220,126 Total available-for-sale debt securities 70,921 4,394,009 11,428 4,476,358 Short-term investments 59,953 7,400 — 67,353 Other investments 4,881 — 4,484 9,365 Total $ 135,755 $ 4,401,409 $ 15,912 $ 4,553,076 NGHC $ 116,602 $ 4,091,068 $ 15,912 $ 4,223,582 Reciprocal Exchanges 19,153 310,341 — 329,494 Total $ 135,755 $ 4,401,409 $ 15,912 $ 4,553,076 For the three months ended March 31, 2020 and 2019, there were no transfers between Level 2 and Level 3. The following tables provide a reconciliation of recurring fair value measurements of the Level 3 financial assets: States and Corporate Other Total Balance as of January 1, 2020 $ 3,100 $ 8,328 $ 4,484 $ 15,912 Total gains (losses) for the period: Included in earnings — — (375) (375) Included in other comprehensive income — 154 — 154 Sales — — (277) (277) Balance as of March 31, 2020 $ 3,100 $ 8,482 $ 3,832 $ 15,414 Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period $ — $ — $ (375) $ (375) Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period $ — $ 154 $ — $ 154 States and Corporate Other Total Balance as of January 1, 2019 $ 3,596 $ 11,767 $ 7,593 $ 22,956 Total gains (losses) for the period: Included in earnings — — (405) (405) Included in other comprehensive income 64 67 — 131 Balance as of March 31, 2019 $ 3,660 $ 11,834 $ 7,188 $ 22,682 Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period $ — $ — $ (405) $ (405) Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period $ 64 $ 67 $ — $ 131 At March 31, 2020 and December 31, 2019, the carrying values of the Company’s cash and cash equivalents, premiums and other receivables, and accounts payable approximate the fair value given their short-term nature and were classified as Level 1. Fair value information about financial liabilities not measured at fair value Debt - The amount reported in the accompanying Condensed Consolidated Balance Sheets for these financial instruments represents the carrying value of the debt. See Note 9, “Debt” for additional information. The following table presents the carrying amount and estimated fair value of debt not carried at fair value, excluding finance lease and other liabilities, as well as the input level used to determine the fair value: March 31, 2020 December 31, 2019 Input Level Carrying amount Fair value Carrying amount Fair value 7.625% Notes Level 2 $ 96,950 $ 83,880 $ 96,928 $ 103,560 6.75% Notes Level 3 347,252 361,628 347,091 371,366 Subordinated Debentures Level 3 72,168 72,118 72,168 72,103 2019 Credit Agreement Level 3 140,000 141,227 140,000 148,272

Deferred Acquisition Costs

Deferred Acquisition Costs	3 Months Ended
	Mar. 31, 2020
Deferred Acquisition Costs [Abstract]
Deferred Policy Acquisition Costs	Deferred Acquisition Costs The following table reflects the amounts of policy acquisition costs deferred and amortized: Three Months Ended March 31, 2020 2019 Property Accident Total Property Accident Total Balance, beginning of the period $ 239,293 $ 24,230 $ 263,523 $ 226,188 $ 25,220 $ 251,408 Additions 154,789 7,431 162,220 145,979 25,101 171,080 Amortization (141,054) (7,321) (148,375) (136,008) (18,303) (154,311) Change in DAC 13,735 110 13,845 9,971 6,798 16,769 Balance, end of the period $ 253,028 $ 24,340 $ 277,368 $ 236,159 $ 32,018 $ 268,177 NGHC $ 230,291 $ 24,340 $ 254,631 $ 215,854 $ 32,018 $ 247,872 Reciprocal Exchanges 22,737 — 22,737 20,305 — 20,305 Balance, end of the period $ 253,028 $ 24,340 $ 277,368 $ 236,159 $ 32,018 $ 268,177

Unpaid Losses and Loss Adjustme

Unpaid Losses and Loss Adjustment Expense Reserves	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Unpaid Losses and Loss Adjustment Expenses	Unpaid Losses and Loss Adjustment Expense Reserves The unpaid losses and loss adjustment expense (“LAE”) reserves are an estimate of the Company’s liability from incurred claims at the reporting period. The unpaid losses and loss adjustment expense reserves are the result of an ongoing analysis of recent loss development trends and emerging historical experience. Original estimates are increased or decreased as additional information becomes known regarding individual claims. In setting its reserves, the Company reviews its loss data to estimate expected loss development. Management believes that its use of standard actuarial methodology applied to its analyses of its historical experience provides a reasonable estimate of future losses. However, actual future losses may differ from the Company’s estimate, and future events beyond the control of management, such as changes in the law, judicial interpretations of the law and inflation, may favorably or unfavorably impact the ultimate settlement of the Company’s losses and LAE. The anticipated effect of inflation is implicitly considered when estimating liabilities for losses and LAE. In addition to inflation, the average severity of claims is affected by a number of factors that may vary by types and features of policies written. Future average severities are projected from historical trends, adjusted for implemented changes in underwriting standards and policy provisions, and general economic trends. These estimated trends are monitored and revised as necessary based on actual development. The following tables present a reconciliation of beginning and ending balances for unpaid losses and LAE: Three Months Ended March 31, 2020 Property Accident NGHC Reciprocal Total Gross balance at beginning of the period $ 2,528,754 $ 151,874 $ 2,680,628 $ 205,786 $ 2,886,414 Less: Reinsurance recoverable at beginning of the period (1,016,368) (11,266) (1,027,634) (84,174) (1,111,808) Net balance at beginning of the period 1,512,386 140,608 1,652,994 121,612 1,774,606 Incurred losses and LAE related to: Current year 563,559 86,409 649,968 41,438 691,406 Prior year 4,471 (4,808) (337) 929 592 Total incurred 568,030 81,601 649,631 42,367 691,998 Paid losses and LAE related to: Current year (204,279) (25,820) (230,099) (18,169) (248,268) Prior year (397,862) (44,076) (441,938) (29,449) (471,387) Total paid (602,141) (69,896) (672,037) (47,618) (719,655) Net balance at end of the period 1,478,275 152,313 1,630,588 116,361 1,746,949 Plus: Reinsurance recoverable at end of the period 1,004,759 14,912 1,019,671 81,573 1,101,244 Gross balance at end of the period $ 2,483,034 $ 167,225 $ 2,650,259 $ 197,934 $ 2,848,193 Three Months Ended March 31, 2019 Property Accident NGHC Reciprocal Total Gross balance at beginning of the period $ 2,507,409 $ 271,280 $ 2,778,689 $ 178,470 $ 2,957,159 Less: Reinsurance recoverable at beginning of the period (1,182,588) (24,575) (1,207,163) (77,979) (1,285,142) Net balance at beginning of the period 1,324,821 246,705 1,571,526 100,491 1,672,017 Incurred losses and LAE related to: Current year 530,549 95,601 626,150 39,973 666,123 Prior year (5,514) (10,852) (16,366) 2,052 (14,314) Total incurred 525,035 84,749 609,784 42,025 651,809 Paid losses and LAE related to: Current year (130,395) (33,681) (164,076) (14,949) (179,025) Prior year (422,560) (53,310) (475,870) (21,478) (497,348) Total paid (552,955) (86,991) (639,946) (36,427) (676,373) Effect of foreign exchange rates — 1,094 1,094 — 1,094 Net balance at end of the period 1,296,901 245,557 1,542,458 106,089 1,648,547 Plus: Reinsurance recoverable at end of the period 1,103,114 28,729 1,131,843 89,933 1,221,776 Gross balance at end of the period $ 2,400,015 $ 274,286 $ 2,674,301 $ 196,022 $ 2,870,323 Prior year loss development, net of reinsurance Prior year development is based upon numerous estimates by line of business and accident year. No additional premiums or return premiums have been accrued as a result of the prior year effects. 2020. Loss and LAE for the three months ended March 31, 2020 included $592 of unfavorable development on prior accident year loss and LAE reserves. The $5,400 of unfavorable development in the property and casualty segment (including $929 of unfavorable development for the Reciprocal Exchanges) was driven by small business auto, while the $4,808 of favorable development in the accident and health segment was primarily driven by small group self-funded business. 2019. Loss and LAE for the three months ended March 31, 2019 included $14,314 of favorable development on prior accident year loss and LAE reserves. The $3,462 of favorable development in the property and casualty segment (including $2,052 of unfavorable development for the Reciprocal Exchanges) was driven by homeowners business, while the $10,852 of favorable development in the accident and health segment was primarily driven by small group self-funded business .

Reinsurance

Reinsurance	Jan. 01, 2020
Insurance [Abstract]
Reinsurance	Reinsurance The Company utilizes various excess of loss, quota share, state-based industry pools or facilities, and catastrophe reinsurance programs to limit its exposure. Reinsurance agreements transfer portions of the underlying risk of the business the Company writes. Reinsurance does not discharge or diminish the Company’s obligation to pay claims covered by the insurance policies it issues; however, it does permit the Company to recover certain incurred losses from its reinsurers and the Company’s reinsurance recoveries reduce the maximum loss that it may incur as a result of a covered loss event. The Company’s reinsurers generally carry at least an A.M. Best rating of “A-” (Excellent) or the reinsurance recoverable balances are collateralized. The total amount, cost and limits relating to the reinsurance coverage the Company purchases may vary from year to year based upon a variety of factors, including the availability of quality reinsurance at an acceptable price and the level of risk that the Company chooses to retain for its account. The Company assumes and cedes insurance risks under various reinsurance agreements, on both a pro-rata basis and excess of loss basis. The Company purchases reinsurance to mitigate the volatility of direct and assumed business, which may be caused by the aggregate value or the concentration of written exposures in a particular geographic area or business segment and may arise from catastrophes or other events. The Company pays a premium as consideration for ceding the risk. Reinsurance recoverable is as follows: March 31, 2020 December 31, 2019 Reinsurance recoverable on paid losses $ 300,954 $ 282,500 Reinsurance recoverable on unpaid losses 1,101,244 1,111,808 Allowance for uncollectible reinsurance (517) — Reinsurance recoverable, net $ 1,401,681 $ 1,394,308 The following is the effect of reinsurance on unpaid loss and LAE reserves and unearned premiums: March 31, 2020 December 31, 2019 Assumed Ceded Assumed Ceded Unpaid Loss and LAE reserves $ 46,868 $ 1,101,244 $ 50,884 $ 1,111,808 Unearned premiums 17,193 511,648 15,278 575,747 The following is the effect of reinsurance on premiums and loss and LAE: Three Months Ended March 31, 2020 2019 Premiums: Written Earned Written Earned Direct $ 1,458,533 $ 1,390,150 $ 1,489,188 $ 1,315,705 Assumed 18,021 16,106 20,590 21,000 Total Gross Premium 1,476,554 1,406,256 1,509,778 1,336,705 Ceded (266,951) (331,050) (345,114) (372,548) Net Premium $ 1,209,603 $ 1,075,206 $ 1,164,664 $ 964,157 Three Months Ended March 31, 2020 2019 Assumed Ceded Assumed Ceded Loss and LAE $ 6,635 $ 196,486 $ 5,322 $ 209,322 Industry Pools and Facilities The Company’s reinsurance programs include premiums written under state-mandated involuntary plans for automobile, motorcycle and commercial vehicles and premiums ceded to state-provided reinsurance facilities such as Michigan Catastrophic Claims Association (“MCCA”) and North Carolina Reinsurance Facility (“NCRF”), for which the Company retains no loss indemnity risk. Prepaid reinsurance premiums are earned on a pro-rata basis over the period of risk, consistent with premiums written. The Company believes that it is unlikely to incur any material loss as a result of non-payment of amounts owed to the Company by MCCA and NCRF because (i) the payment obligations are extended over many years, resulting in relatively small current payment obligations, (ii) both MCCA and NCRF are supported by assessments permitted by statute, and (iii) the Company has not historically incurred losses as a result of non-payment. Because MCCA and NCRF are supported by assessments permitted by statute, and there have been no significant and uncollectible balances from MCCA and NCRF, the Company believes that it has no significant exposure to uncollectible reinsurance balances from these entities. Quota Share Agreements In 2017, the Company entered into an Auto Quota Share Agreement (the “Auto Quota Share Agreement”) covering the Company’s auto lines of business. Effective January 1, 2019, the Company ceded 7.0% of net liability. On July 1, 2019, the Company renewed its Auto Quota Share Agreement for a two-year term. Effective July 1, 2019, the Company ceded 10.0% of net liability with the ability to increase the cession to up to 30.0% and decrease the cession down to 5.0% under certain conditions. The Company receives a 31.2% provisional ceding commission on premiums ceded to the reinsurer during the term of the Auto Quota Share Agreement, subject to a sliding scale adjustment to a maximum of 32.8% if the loss ratio for the reinsured business is 64.7% or less and a minimum of 30.0% if the loss ratio is 67.5% or higher. Effective January 1, 2020, the Company cedes 5.0% of net liability under new and renewal auto policies written. In 2017, the Company entered into a Homeowners Quota Share Agreement (the “HO Quota Share Agreement”) covering the Company’s homeowners line of business. On July 1, 2019, the Company renewed its HO Quota Share Agreement for a one-year term. Effective July 1, 2019, the Company cedes 40.0% of net liability and receives a 36.0% ceding commission on new and renewal business and a portion of the in-force business. A portion of the in-force business is being run-off under the prior agreements. The weighted average expected ceding commission for all in-force business and new and renewal homeowners business is 37.5% over the contract term. Effective July 1, 2019, the Reciprocal Exchanges entered into a personal lines quota share agreement for a one-year term. The Reciprocal Exchanges cede 28.5% of net liability on new and renewal homeowners multiple peril, dwelling fire, and automobile physical damage (comprehensive only) policies written in the states of New Jersey and New York. Catastrophe Reinsurance Effective May 1, 2019, the Company’s reinsurance property catastrophe excess of loss program, protecting the Company against catastrophic events and other large losses, provides a total of $650,000 in coverage with one reinstatement with a $70,000 retention for the first event and $50,000 for the second event. As of July 1, 2018, the casualty program provides $35,000 in coverage in excess of a $5,000 retention. Effective October 1, 2019, the Company renewed the casualty program, for which coverage and retention will remain in effect and unchanged. The Company pays a premium as consideration for ceding the risk. Effective July 1, 2019, the Reciprocal Exchanges renewed their property catastrophe excess of loss program, providing a total of $480,000 in coverage with a $20,000 retention, with one reinstatement.

Debt

Debt	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Debt	Debt The following table represents the Company’s debt: Interest Rate Maturity March 31, 2020 December 31, 2019 Fixed-rate: 6.75% Notes 6.75% 2024 $ 350,000 $ 350,000 7.625% Notes 7.625% 2055 100,000 100,000 Floating-rate: Subordinated Debentures I (1) LIBOR + 3.40% 2035 41,238 41,238 Subordinated Debentures II (2) LIBOR + 4.25% 2037 30,930 30,930 2019 Credit Agreement (3) LIBOR + 1.75% 2023 140,000 140,000 Finance lease liabilities Various Various 20,946 20,477 Other 3.5% Various 7,762 9,342 Unamortized debt issuance costs and unamortized discount (5,798) (5,981) Total carrying amount of debt $ 685,078 $ 686,006 (1) Interest rate was 4.14% and 5.29%, as of March 31, 2020 and December 31, 2019, respectively. (2) Interest rate was 4.99% and 6.14%, as of March 31, 2020 and December 31, 2019, respectively. (3) Weighted-average interest rate was 2.75% and 3.59% as of March 31, 2020 and December 31, 2019, respectively. The following table presents the Company’s interest expense: Three Months Ended March 31, Interest Payment Frequency 2020 2019 6.75% Notes Semiannually $ 5,906 $ 5,906 7.625% Notes Quarterly 1,906 1,906 Subordinated Debentures Quarterly 997 1,163 2016 Credit Agreement Quarterly — 1,211 2019 Credit Agreement Quarterly 1,215 529 Finance lease liabilities Various 371 294 Other (1) Various 1,385 1,990 Total interest expense $ 11,780 $ 12,999 (1) Includes interest for other liabilities, interest credited on funds held balances and accretion of debt issuance costs. Notes The 6.75% Notes are the Company’s general unsecured obligations and rank equally in right of payment with its other existing and future senior unsecured indebtedness and senior in right of payment to any of its indebtedness that is contractually subordinated to the 6.75% Notes. The 6.75% Notes are also effectively subordinated to any of the Company’s existing and future secured indebtedness to the extent of the value of the collateral securing such indebtedness and are structurally subordinated to the existing and future indebtedness of the Company’s subsidiaries (including trade payables). The 6.75% Notes mature on May 15, 2024, unless earlier redeemed or purchased by the Company. The 7.625% Notes are the Company’s subordinated unsecured obligations and rank (i) senior in right of payment to any future junior subordinated debt, (ii) equal in right of payment with any unsecured, subordinated debt that the Company incurs in the future that ranks equally with the 7.625% Notes, and (iii) subordinate in right of payment to any of the Company’s existing and future senior debt, including amounts outstanding under the Company’s revolving credit facility, the Company’s 6.75% notes and certain of the Company’s other obligations. In addition, the 7.625% Notes are structurally subordinated to all existing and future indebtedness, liabilities and other obligations of the Company’s subsidiaries. The 7.625% Notes mature on September 15, 2055, unless earlier redeemed or purchased by the Company. Subordinated Debentures The Company, through a subsidiary, is the issuer of junior subordinated debentures (the “Subordinated Debentures”) relating to an issuance of trust preferred securities. The Subordinated Debentures require interest-only payments to be made on a quarterly basis, with principal due at maturity. The Subordinated Debentures’ principal amounts of $41,238 and $30,930 mature on 2035 and 2037, respectively, and bear interest at an annual rate equal to LIBOR plus 3.40% and LIBOR plus 4.25%, respectively. The Subordinated Debentures are redeemable by the Company at a redemption price equal to 100% of their principal amount. Credit Agreement In 2019, the Company refinanced its existing credit agreement and entered into a new credit agreement (the “2019 Credit Agreement”), with JPMorgan Chase Bank, N.A., as Administrative Agent, KeyBank National Association and Fifth Third Bank, as Co-Syndication Agents, and the various lending institutions party thereto. The 2019 Credit Agreement is currently a $340,000 base revolving credit facility with a letter of credit sublimit of $150,000 and an expansion feature of up to $50,000. Borrowings under the 2019 Credit Agreement bear interest at either the Alternate Base Rate (“ABR”) or the LIBOR rate. ABR borrowings under the 2019 Credit Agreement will bear intere st at the great est of (a) the prime rate in effect on such day, (b) the federal funds effective rate on such day plus 0.5 percent or (c) the adjusted LIBOR rate for a one-month interest period on such day plus 1 percent. Eurodollar borrowings under the 2019 Credit Agreement will bear interest at the adjusted LIBOR rate plus the Eurodollar spread for the interest period in effect. Fees payable by the Company under the 2019 Credit Agreement include a letter of credit participation fee, a letter of credit fronting fee with respect to each letter of credit (0.125%) and a commitment fee on the available commitments of the lenders (a range of 0.175% to 0.25% based on the Company’s consolidated leverage ratio; and as of March 31, 2020, the rate wa s 0.225%). The 2019 Credit Agreement has a maturity date of February 25, 2023. Maturities of the Company’s debt for the years subsequent to March 31, 2020 are as follows: 2020 (remaining nine months) 2021 2022 2023 2024 2025 Thereafter Total 6.75% Notes $ — $ — $ — $ — $ 350,000 $ — $ — $ 350,000 7.625% Notes — — — — — — 100,000 100,000 Subordinated Debentures I — — — — — — 41,238 41,238 Subordinated Debentures II — — — — — — 30,930 30,930 2019 Credit Agreement — — — 140,000 — — — 140,000 Finance lease liabilities 5,380 5,664 3,439 2,144 1,360 735 2,224 20,946 Other 4,819 2,943 — — — — — 7,762 Total principal amount of debt $ 10,199 $ 8,607 $ 3,439 $ 142,144 $ 351,360 $ 735 $ 174,392 $ 690,876 Unamortized debt issuance costs and unamortized discount (5,798) Carrying amount of debt $ 685,078 Covenants and Compliance The indenture relating to the 6.75% Notes and 7.625% Notes contains customary covenants, such as reporting of annual and quarterly financial results, and restrictions on certain mergers and consolidations, as well as covenants relating to the incurrence of debt if the Company’s consolidated leverage ratio would exceed 0.35 to 1.00, a limitation on liens, a limitation on the disposition of stock of certain of the Company’s subsidiaries and a limitation on transactions with certain of the Company’s affiliates. The 2019 Credit Agreement contains certain restrictive covenants customary for facilities of this type (subject to negotiated exceptions and baskets), including restrictions on indebtedness, liens, acquisitions and investments, restricted payments and dispositions. There are also financial covenants that require the Company to maintain a minimum consolidated net worth, a maximum consolidated leverage ratio, a minimum risk-based capital and a minimum rating. The 2019 Credit Agreement also provides for customary events of default, with grace periods where customary, including failure to pay principal when due, failure to pay interest or fees within three business days after becoming due, failure to comply with covenants, breaches of representations and warranties, default under certain other indebtedness, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, or a change in control of the Company. Upon the occurrence and during the continuation of an event of default, the administrative agent, upon the request of the requisite percentage of the lenders, may terminate the obligations of the lenders to make loans and to issue letters of credit under the 2019 Credit Agreement, declare the Company’s obligations under the 2019 Credit Agreement to become immediately due and payable and/or exercise any and all remedies and other rights under the 2019 Credit Agreement. As of March 31, 2020, the Company was in compliance with the covenants contained in the Company’s debt agreements.

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Litigation The Company is routinely involved in legal proceedings arising in the ordinary course of business, in particular in connection with claims adjudication with respect to its policies. Management believes it has recorded adequate reserves for these liabilities and that there is no individual case pending that is likely to have a material adverse effect on our financial condition or results of operations. On July 25, 2019, the City of North Miami Beach Police Officers’ and Firefighters’ Retirement Plan filed a complaint in the U.S. District Court for the Central District of California against the Company and certain of its officers. On November 19, 2019, the U.S. District Court for the Central District of California granted the Company’s Motion to Transfer the case to the Southern District of New York. On January 10, 2020, lead plaintiffs Town of Davie Police Officers Retirement System and Massachusetts Laborers’ Pension Fund filed an amended Complaint asserting claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder based on allegedly false and misleading statements made by the Company in its SEC filings in relationship to the Company’s involvement in the historical and no longer existing Wells Fargo collateral protection insurance program on behalf of a purported class of individuals and entities who purchased or otherwise acquired shares of the Company’s common stock between July 15, 2015 and August 9, 2017. The amended complaint seeks damages in an amount to be proven at trial. The Company filed a Motion to Dismiss the amended complaint on March 10, 2020. Management believes that the claims set forth in the amended complaint are unfounded and without merit and intends to vigorously contest them. The Company notes, however, that in light of the inherent uncertainty in legal proceedings, the Company can give no assurance as to the ultimate resolution of the matter, and an estimate of the possible loss or range of loss, if any, cannot be made at this time.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company files a consolidated Federal income tax return. The Reciprocal Exchanges are not included in the Company’s consolidated tax return as the Company does not have an ownership interest in the Reciprocal Exchanges, and they are not a part of the consolidated tax sharing agreement among the Company and its subsidiaries. The Company uses the estimated annual effective tax rate method. Certain items, including those deemed to be unusual, infrequent or that cannot be reliably estimated, are excluded from the estimated annual effective tax rate. In these cases, the actual tax expense or benefit is reported in the same period as the related item. Certain tax effects are also not reflected in the estimated annual effective tax rate, primarily certain changes in the realizability of deferred tax assets and uncertain tax positions. The Company’s consolidated effective tax rate increased from 20.9% for the three months ended March 31, 2019 to 21.9% for the three months ended March 31, 2020. The increase in consolidated effective tax rate for the periods was primarily driven by an increase in tax associated with U.S shareholder’s income and other nondeductible items. All tax liabilities are payable to the Internal Revenue Service (“IRS”) and various state and local taxing agencies. The Company’s subsidiaries are currently under audit by the IRS for the year ended December 31, 2016 and 2017, and open to audit years thereafter for federal tax purposes. For state and local tax purposes, the Company is open to audit for tax years ended December 31, 2016 forward, depending on jurisdiction. The Company continues to consider the tax impact of recent legislation passed to mitigate the impact of COVID-19, such as the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”). At this time, the Company believes that the provisions of the Act will not have a material tax impact.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity Preferred Stock The Company has four separate series (Series A through D) of preferred stock outstanding. Two of these series (Series B and C) were issued in offerings using depositary shares. Dividends on the Series A, B and C preferred stock are payable on the liquidation preference amount, on a non-cumulative basis, when, as and if declared by the Company’s Board of Directors, quarterly in arrears on the 15th day of January, April, July and October of each year. Dividends on the Series D preferred stock are payable on the liquidation preference amount, on a non-cumulative basis, when, as and if declared by the Company’s Board of Directors, semi-annually in arrears on the 15th day of January and July of each year, commencing on January 15, 2019. On or after July 15, 2023 (or in the event of a fundamental change of the Company, at any time), the Series D preferred stock may be converted at the holder’s option into shares of the Company’s common stock. A summary description of the terms of these series of preferred stock is presented in the table below: Series Dividend rate Shares of preferred stock issued Depositary shares issued Liquidation preference per share Aggregate liquidation preference A 7.50 % 2,200,000 — $ 25 $ 55,000 B 7.50 % 165,000 6,600,000 $ 1,000 $ 165,000 C 7.50 % 200,000 8,000,000 $ 1,000 $ 200,000 D Fixed/ Floating (1) 120 — $ 250,000 $ 30,000 (1) Dividend rate is fixed at 7.00% prior to July 15, 2023 and floating at six-month LIBOR plus 5.4941% thereafter. Common Stock and Preferred Stock Dividends Dividends are payable on the Company’s common and preferred stock only when, as and if declared by the Company’s Board of Directors in its discretion, from funds legally available for this purpose. The following tables present the class of stock, declaration date and dividends paid per share: Class of Stock Declaration Date Dividend Dividend Per Depositary Share Common stock February 20, 2020 $ 0.05 Preferred stock Series A February 20, 2020 $ 0.46875 Preferred stock Series B and Series C February 20, 2020 $ 18.75 $ 0.46875 Class of Stock Declaration Date Dividend Dividend Per Depositary Share Common stock February 25, 2019 $ 0.04 Preferred stock Series A February 25, 2019 $ 0.46875 Preferred stock Series B and Series C February 25, 2019 $ 18.75 $ 0.46875

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation In 2019, the Company’s stockholders approved the 2019 Omnibus Incentive Plan (the “2019 Plan”). The 2019 Plan authorizes up to 2.5 million shares of the Company’s stock for awards of stock options, stock appreciation rights, restricted stock, restricted stock units (“RSUs”), performance share units, performance units, cash-based awards or other stock-based awards. The number of shares of common stock for which awards may be issued may not exceed 2.5 million shares, subject to the authority of the Company’s Board of Directors to adjust this amount in the event of a consolidation, reorganization, stock dividend, recapitalization or similar transaction affecting the Company’s common stock. The 2019 Plan serves as a successor of the Company’s prior equity incentive plans. Outstanding awards under the prior plans continue to be outstanding and subject to their terms and conditions. As of March 31, 2020, approximately 1.9 million shares of the Company’s common stock remained available for grants under the 2019 Plan. Stock Options A summary of the stock option awards granted under the prior plan is shown below: Shares Subject to Options Outstanding Three Months Ended March 31, 2020 Number of Shares Weighted- Weighted-Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at beginning of the period 3,025,587 $ 9.83 Exercised (120,738) 3.67 Outstanding and exercisable at end of the period 2,904,849 $ 10.09 3.0 $ 18,862 (1) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing price of the Company’s common stock of $16.55, as reported on the Nasdaq Global Market on March 31, 2020. No options were granted, forfeited or expired during the three months ended March 31, 2020. The total intrinsic value of the options exercised for the three months ended March 31, 2020 and 2019 was $2,126 and $526, respectively. The total fair value of stock options vested for the three months ended March 31, 2020 and 2019 was $178 and $37, respectively. Restricted Stock Units A summary of the RSUs is shown below: RSUs Three Months Ended March 31, 2020 Number of RSUs Weighted-Average Grant Date Fair Value Non-vested at beginning of the period 1,033,631 $ 23.98 Granted 543,997 21.52 Vested (381,676) 23.58 Non-vested at end of the period 1,195,952 $ 22.99 The weighted-average grant date fair value of RSUs granted for the three months ended March 31, 2020 and 2019 was $21.52 and $25.60, respectively. The total fair value of the RSUs vested for the three months ended March 31, 2020 and 2019 was $9,002 and $5,796, respectively. Stock-Based Compensation Expense Stock-based compensation expense, included in general and administrative expenses, for all stock-based compensation plans was $3,162 and $2,622 for the three months ended March 31, 2020 and 2019, respectively. As of March 31, 2020, the Company had approximately $24,749 of unrecognized stock-based compensation expense related to RSUs awards. This unrecognized stock-based compensation expense is expected to be recognized over a weighted-average period of approximately 1.6 years based on vesting under the award service conditions.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following is a summary of the elements used in calculating basic and diluted earnings per common share: Three Months Ended March 31, 2020 2019 Numerator: Net income attributable to NGHC $ 100,759 $ 91,758 Preferred stock dividends - nonconvertible (7,875) (7,875) Preferred stock dividends - convertible — — Numerator for basic EPS 92,884 83,883 Effect of dilutive securities: Preferred stock dividends - convertible — — Numerator for diluted EPS - after assumed conversions $ 92,884 $ 83,883 Denominator: Denominator for basic EPS - weighted-average shares outstanding 113,557,441 113,014,711 Effect of dilutive securities: Employee stock options 1,454,379 1,939,844 RSUs 274,051 331,198 Convertible preferred stock 789,473 789,473 Dilutive potential common shares 2,517,903 3,060,515 Denominator for diluted EPS - weighted-average shares outstanding and assumed conversions 116,075,344 116,075,226 Basic EPS $ 0.82 $ 0.74 Diluted EPS $ 0.80 $ 0.72

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The significant shareholder of the Company has an ownership interest in AmTrust and ACP Re. The Company is a party to the following transactions with these related entities: Equity Method Investments The Company has an ownership interest in an LSC Entity, limited liability companies and limited partnerships with related parties. See Note 4, “Investments - Equity Method Investments - Related Parties” for additional information. Agreements with ACP Re Credit Agreement The Company is party to a credit agreement (the “ACP Re Credit Agreement”) by and among AmTrust, as administrative agent, ACP Re Holdings, LLC, a Delaware limited liability company owned by a related party trust, the Michael Karfunkel Family 2005 Trust (the “Trust”), as borrower, and AmTrust and the Company, as lenders of $250,000 ($125,000 each lender). The amounts borrowed are secured by equity interests, cash and, other investments held by ACP Re Holdings, LLC in an amount equal to 115% of the outstanding loan balance. The maturity date of the loan is September 20, 2036. The interest rate on the outstanding principal balance is a fixed annual rate of 3.7%, provided that up to 1.2% thereof may be paid in kind. The Trust is required to cause ACP Re Holdings, LLC to maintain assets having a value greater than 115% of the outstanding loan balance, and if there is a shortfall, the Trust will make a contribution to ACP Re Holdings, LLC of assets having a market value of at least the shortfall (the “Maintenance Covenant”). Commencing on September 20, 2026, and for each year thereafter, two percent of the then outstanding principal balance of the loan (inclusive of any amounts previously paid in kind) is due and payable. A change of control of greater than 50% and an uncured breach of the Maintenance Covenant are included as events of default. As of March 31, 2020 and December 31, 2019 the Company had a receivable principal amount related to the ACP Re Credit Agreement of $130,004 and $129,229, respectively. The Company recorded interest income of $1,203 and $1,188 for the three months ended March 31, 2020 and 2019, respectively, under the ACP Re Credit Agreement. Management determined no impairment reserve was needed for the carrying value of the loan at March 31, 2020 and December 31, 2019 based on the collateral levels maintained. Other Related Party Transactions Lease Agreements The Company leases office space at 59 Maiden Lane in New York, New York from 59 Maiden Lane Associates LLC, an entity that is wholly-owned by the Karfunkel family. The lease term is through 2022. The Company paid $207 and $207 in rent for the three months ended March 31, 2020 and 2019, respectively. The Company leases office space at 30 North LaSalle Street, Chicago, Illinois from 30 North LaSalle Street Partners LLC, an entity that is wholly-owned by the Karfunkel family. The lease term is through 2025. The Company paid $108 and $76 in rent for the three months ended March 31, 2020 and 2019, respectively.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Segment Information	Segment Information The Company currently operates two business segments, “Property and Casualty” and “Accident and Health.” The “Corporate and Other” column represents the activities of the holding company, as well as income from the Company’s investment portfolio. The Company evaluates segment profits attributable to the performance of activities within the segment separately from the results of the Company’s investment portfolio. Other operating expenses allocated to the segments are called “General and administrative expenses” which are allocated on an actual basis except corporate salaries and benefits where management’s judgment is applied. In determining total assets by segment, the Company identifies those assets that are attributable to a particular segment such as premiums receivable, deferred acquisition costs, reinsurance recoverable, prepaid reinsurance premiums, intangible assets and goodwill, while the remaining assets are allocated to Corporate and Other. The Property and Casualty segment, which includes the Reciprocal Exchanges and the management companies, reports the management fees earned by the Company from the Reciprocal Exchanges for underwriting, investment management and other services as service and fee income. The effects of these transactions between the Company and the Reciprocal Exchanges are eliminated in consolidation to derive consolidated net income. However, the management fee income is reported in net income attributable to NGHC and included in the basic and diluted earnings per share. The following tables summarize the results of operations of the operating segments: Three Months Ended March 31, 2020 Property Accident Corporate Total Underwriting revenues: Gross premium written $ 1,289,529 $ 187,025 $ — $ 1,476,554 Ceded premiums (248,142) (18,809) — (266,951) Net premium written 1,041,387 168,216 — 1,209,603 Change in unearned premium (130,887) (3,510) — (134,397) Net earned premium 910,500 164,706 — 1,075,206 Ceding commission income 49,745 560 — 50,305 Service and fee income 98,917 80,524 — 179,441 Total underwriting revenues 1,059,162 245,790 — 1,304,952 Underwriting expenses: Loss and loss adjustment expense 610,397 81,601 — 691,998 Acquisition costs and other underwriting expenses 159,771 68,471 — 228,242 General and administrative expenses 207,817 59,752 — 267,569 Total underwriting expenses 977,985 209,824 — 1,187,809 Underwriting income 81,177 35,966 — 117,143 Net investment income — — 30,243 30,243 Net loss on investments — — (6,861) (6,861) Interest expense — — (11,780) (11,780) Provision for income taxes — — (28,172) (28,172) Net loss attributable to noncontrolling interest — — 186 186 Net income attributable to NGHC $ 81,177 $ 35,966 $ (16,384) $ 100,759 Three Months Ended March 31, 2019 Property Accident Corporate Total Underwriting revenues: Gross premium written $ 1,251,234 $ 258,544 $ — $ 1,509,778 Ceded premiums (286,751) (58,363) — (345,114) Net premium written 964,483 200,181 — 1,164,664 Change in unearned premium (161,906) (38,601) — (200,507) Net earned premium 802,577 161,580 — 964,157 Ceding commission income 66,943 2,591 — 69,534 Service and fee income 104,495 61,012 — 165,507 Total underwriting revenues 974,015 225,183 — 1,199,198 Underwriting expenses: Loss and loss adjustment expense 567,060 84,749 — 651,809 Acquisition costs and other underwriting expenses 154,070 57,848 — 211,918 General and administrative expenses 189,456 58,638 — 248,094 Total underwriting expenses 910,586 201,235 — 1,111,821 Underwriting income 63,429 23,948 — 87,377 Net investment income — — 33,445 33,445 Net gain on investments — — 22 22 Interest expense — — (12,999) (12,999) Provision for income taxes — — (22,506) (22,506) Net loss attributable to noncontrolling interest — — 6,419 6,419 Net income attributable to NGHC $ 63,429 $ 23,948 $ 4,381 $ 91,758 The following tables summarize the financial position of the operating segments: March 31, 2020 Property Accident Corporate Total Premiums and other receivables, net $ 1,373,437 $ 167,928 $ 395 $ 1,541,760 Deferred acquisition costs 253,028 24,340 — 277,368 Reinsurance recoverable, net 1,380,374 21,307 — 1,401,681 Prepaid reinsurance premiums 511,613 35 — 511,648 Goodwill and Intangible assets, net 429,784 107,112 — 536,896 Prepaid and other assets 53,545 27,577 5,237 86,359 Corporate and other assets — — 5,504,862 5,504,862 Total assets $ 4,001,781 $ 348,299 $ 5,510,494 $ 9,860,574 December 31, 2019 Property Accident Corporate Total Premiums and other receivables, net $ 1,292,813 $ 131,877 $ 4,258 $ 1,428,948 Deferred acquisition costs 239,293 24,230 — 263,523 Reinsurance recoverable, net 1,377,284 17,024 — 1,394,308 Prepaid reinsurance premiums 575,712 35 — 575,747 Goodwill and Intangible assets, net 436,724 108,427 — 545,151 Prepaid and other assets 56,960 32,852 4,830 94,642 Corporate and other assets — — 5,454,215 5,454,215 Total assets $ 3,978,786 $ 314,445 $ 5,463,303 $ 9,756,534 The following tables summarize service and fee income by source within each operating segment: Three Months Ended March 31, 2020 2019 Property Accident Total Property Accident Total Commission revenue $ 18,751 $ 29,632 $ 48,383 $ 27,210 $ 24,771 $ 51,981 Finance and processing fees 35,789 2,471 38,260 32,436 2,024 34,460 Group health administrative fees — 29,975 29,975 — 23,505 23,505 Installment fees 25,088 — 25,088 24,170 — 24,170 Late payment fees 7,833 12 7,845 8,293 87 8,380 Other service and fee income 11,456 18,434 29,890 12,386 10,625 23,011 Total $ 98,917 $ 80,524 $ 179,441 $ 104,495 $ 61,012 $ 165,507 NGHC $ 97,760 $ 80,524 $ 178,284 $ 103,125 $ 61,012 $ 164,137 Reciprocal Exchanges 1,157 — 1,157 1,370 — 1,370 Total $ 98,917 $ 80,524 $ 179,441 $ 104,495 $ 61,012 $ 165,507 The following tables show an analysis of premiums and fee income by product line: Three Months Ended March 31, Gross Premium Written 2020 2019 Property and Casualty Personal Auto $ 794,497 $ 766,681 Homeowners 165,253 152,042 RV/Packaged 53,128 51,851 Small Business Auto 72,752 85,878 Lender-placed Insurance 95,444 75,938 Other 16,602 13,275 Total Property and Casualty 1,197,676 1,145,665 Accident and Health Group 87,538 64,938 Individual 99,487 84,192 International — 109,414 Total Accident and Health 187,025 258,544 Total NGHC $ 1,384,701 $ 1,404,209 Reciprocal Exchanges Personal Auto $ 31,809 $ 36,862 Homeowners 59,236 67,800 Other 808 907 Total Reciprocal Exchanges $ 91,853 $ 105,569 Total Gross Premium Written $ 1,476,554 $ 1,509,778 Three Months Ended March 31, Net Premium Written 2020 2019 Property and Casualty Personal Auto $ 702,307 $ 658,920 Homeowners 88,543 85,245 RV/Packaged 51,978 51,597 Small Business Auto 58,599 74,186 Lender-placed Insurance 77,469 42,070 Other 7,196 3,510 Total Property and Casualty 986,092 915,528 Accident and Health Group 69,471 53,950 Individual 98,745 84,123 International — 62,108 Total Accident and Health 168,216 200,181 Total NGHC $ 1,154,308 $ 1,115,709 Reciprocal Exchanges Personal Auto $ 29,074 $ 15,645 Homeowners 25,925 33,016 Other 296 294 Total Reciprocal Exchanges $ 55,295 $ 48,955 Total Net Premium Written $ 1,209,603 $ 1,164,664 Three Months Ended March 31, Net Earned Premium 2020 2019 Property and Casualty Personal Auto $ 579,502 $ 510,554 Homeowners 91,483 84,058 RV/Packaged 49,292 50,305 Small Business Auto 59,425 67,633 Lender-placed Insurance 69,667 41,718 Other 3,533 2,651 Total Property and Casualty 852,902 756,919 Accident and Health Group 69,470 53,963 Individual 95,236 82,235 International — 25,382 Total Accident and Health 164,706 161,580 NGHC Total $ 1,017,608 $ 918,499 Reciprocal Exchanges Personal Auto $ 32,923 $ 15,861 Homeowners 24,333 29,491 Other 342 306 Total Reciprocal Exchanges 57,598 45,658 Total Net Earned Premium $ 1,075,206 $ 964,157 Three Months Ended March 31, Fee Income 2020 2019 Property and Casualty Service and Fee Income $ 97,760 $ 103,125 Ceding Commission Income 36,031 48,409 Total Property and Casualty 133,791 151,534 Accident and Health Service and Fee Income Group 40,482 30,374 Individual 2,217 2,136 Third-Party Fee 37,825 28,502 Total Service and Fee Income 80,524 61,012 Ceding Commission Income 560 2,591 Total Accident and Health 81,084 63,603 NGHC Total $ 214,875 $ 215,137 Reciprocal Exchanges Service and Fee Income $ 1,157 $ 1,370 Ceding Commission Income 13,714 18,534 Total Reciprocal Exchanges $ 14,871 $ 19,904 Total Fee Income $ 229,746 $ 235,041

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events On April 29, 2020, the Board of Directors of the Company authorized and approved a share repurchase program for up to $50,000 aggregate purchase price of the currently outstanding shares of the Company’s common stock over the next 12 months. Under the share repurchase program, the Company may from time to time repurchase shares through open market or block purchases, or otherwise in accordance with applicable federal securities laws, including Rule 10b-18 of the Securities Exchange Act of 1934. The Company’s share repurchase program may be modified, suspended or terminated at any time. The Company cannot predict the timing or number of shares it may repurchase as the share repurchase program will depend on various factors, including price and general business and market conditions. On April 23, 2020, the Company disclosed it would provide a 15 percent credit on April premiums for personal auto insurance customers with a policy in force as of April 30, 2020, and will automatically be credited to their policy, subject to state regulatory approvals and other relief requirements. Such amounts have not been recorded in these financial statements.

Basis of Reporting Basis of Rep

Basis of Reporting Basis of Reporting (Policies)	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting, Policy	The accompanying unaudited interim condensed consolidated financial statements include the accounts of National General Holdings Corp. and its subsidiaries (the “Company” or “NGHC”) and have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the U.S. Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These interim condensed consolidated financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, previously filed with the SEC on February 20, 2020. The balance sheet at December 31, 2019, has been derived from the audited consolidated financial statements at that date. These interim condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the results for the interim period and all such adjustments are of a normal recurring nature. The results of operations for the interim period are not necessarily indicative, if annualized, of those to be expected for the full year. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

Organization, Consolidation and

Organization, Consolidation and Presentation of Financial Statements (Policies)	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investment Impairments	Investment Impairments The Company conducts a periodic review to identify and evaluate invested assets that may have credit impairments. Beginning on January 1, 2020, credit losses on available-for-sale debt securities are recognized through an allowance account. See Note 4, “Investments” for additional information. The Company reports investment income accrued separately from debt securities, available for sale, and has elected not to measure an allowance for credit losses for investment income accrued. Investment income accrued is written off by reversing interest income through net investment income at the time the issuer of the bond defaults or is expected to default on payments.
Premiums and Other Receivables	Premiums and Other Receivables Premium and other receivables are reported net of an allowance for expected credit losses. The allowance is based upon the Company’s ongoing review of amounts outstanding, historical loss data, including delinquencies and write-offs, current and forecasted economic conditions, and other relevant factors. Credit risk is partially mitigated by the Company’s ability to cancel the policy if the policyholder does not pay the premium.
Reinsurance Recoverable	Reinsurance Recoverable Amounts recoverable from reinsurers are estimated in a manner consistent with the associated claim liability. The Company reports its reinsurance recoverable net of an allowance for estimated uncollectible reinsurance. The allowance is based upon the Company’s ongoing review of amounts outstanding, length of collection periods, changes in reinsurer credit standing, disputes, applicable coverage defenses, and other relevant factors. The Company evaluates and monitors the financial condition of its reinsurers under voluntary reinsurance arrangements to minimize its exposure to significant losses from reinsurer insolvencies.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted During 2020 Standard Description Date of Adoption Effect on the Company ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, and related amendments. This standard changes the impairment model to a new forward-looking expected loss model for most financial assets and certain other instruments. The standard requires immediate recognition of estimated credit losses expected to occur over the remaining life of many financial assets, which will generally result in earlier recognition of allowances for credit losses on loans and other financial instruments. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. The Company will continue to use judgement to determine which loss estimation method is appropriate for their circumstances. The standard is effective for interim and annual reporting periods beginning after December 15, 2019 and requires using a modified retrospective approach, recognizing a cumulative-effect adjustment as of the beginning of the first reporting period in which the standard is effective. January 1, 2020 The Company adopted ASU 2016-13 using the modified retrospective approach and recorded a cumulative-effect adjustment of $1,010 to the opening balance of retained earnings and increased the allowance for premiums receivable and reinsurance recoverable by the same amount. ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This standard establishes a one-step process for testing the value of the goodwill which an entity carries. ASU 2017-04 requires the goodwill impairment to be measured as the excess of the reporting unit’s carrying amount over its fair value. January 1, 2020 The adoption of the standard did not have a material impact on the Company’s condensed consolidated financial statements. With the exception of the adopted accounting pronouncements discussed above, there have been no recent accounting pronouncements, or quantitative or qualitative progress made toward implementation of outstanding accounting pronouncements during the three months ended March 31, 2020, as compared to those described in Note 2, “Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, that are of significance, or potential significance, to the Company.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Tables)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Adopted During 2020 Standard Description Date of Adoption Effect on the Company ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, and related amendments. This standard changes the impairment model to a new forward-looking expected loss model for most financial assets and certain other instruments. The standard requires immediate recognition of estimated credit losses expected to occur over the remaining life of many financial assets, which will generally result in earlier recognition of allowances for credit losses on loans and other financial instruments. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. The Company will continue to use judgement to determine which loss estimation method is appropriate for their circumstances. The standard is effective for interim and annual reporting periods beginning after December 15, 2019 and requires using a modified retrospective approach, recognizing a cumulative-effect adjustment as of the beginning of the first reporting period in which the standard is effective. January 1, 2020 The Company adopted ASU 2016-13 using the modified retrospective approach and recorded a cumulative-effect adjustment of $1,010 to the opening balance of retained earnings and increased the allowance for premiums receivable and reinsurance recoverable by the same amount. ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This standard establishes a one-step process for testing the value of the goodwill which an entity carries. ASU 2017-04 requires the goodwill impairment to be measured as the excess of the reporting unit’s carrying amount over its fair value. January 1, 2020 The adoption of the standard did not have a material impact on the Company’s condensed consolidated financial statements. With the exception of the adopted accounting pronouncements discussed above, there have been no recent accounting pronouncements, or quantitative or qualitative progress made toward implementation of outstanding accounting pronouncements during the three months ended March 31, 2020, as compared to those described in Note 2, “Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, that are of significance, or potential significance, to the Company.

Allowance for Expected Credit_2

Allowance for Expected Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Credit Loss [Abstract]
Premium Receivable, Allowance for Credit Loss	The following table presents the balances of premiums and other receivables, net of the allowance for expected credit losses, as of March 31, 2020 and January 1, 2020, and changes in the allowance for expected credit losses for the three months ended March 31, 2020. Premiums and Other Receivables, Net of Allowance for Expected Credit Losses Allowance for Expected Credit Losses Balance, beginning of the period $ 1,428,948 $ 24,067 Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020 762 Current period change for expected credit losses (1) 25,766 Write-offs of uncollectible premiums and other receivables (23,481) Balance, end of the period $ 1,541,760 $ 27,114 (1) Current period charges for expected losses are recorded in general and administrative expenses.
Reinsurance Recoverable, Allowance for Credit Loss	The following table presents the balances of reinsurance recoverable, net of the allowance for estimated uncollectible reinsurance, as of March 31, 2020 and January 1, 2020, and changes in the allowance for estimated uncollectible reinsurance for the three months ended March 31, 2020. Reinsurance Receivable, Net of Allowance for Expected Credit Losses Allowance for Expected Credit Losses Balance, beginning of the period $ 1,394,308 $ — Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020 517 Current period change for estimated uncollectible reinsurance — Write-offs of uncollectible reinsurance — Balance, end of the period $ 1,401,681 $ 517

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale Debt Securities	Amortized Allowance for Gross Unrealized Fair March 31, 2020 Cost Credit Losses (1) Gains Losses Value U.S. Treasury $ 56,656 $ — $ 4,398 $ — $ 61,054 Federal agencies 3,907 — 14 — 3,921 States and political subdivision bonds 292,734 — 8,931 (32) 301,633 Foreign government 1,762 — — (38) 1,724 Corporate bonds 1,922,412 (2,927) 35,738 (31,790) 1,923,433 Residential mortgage-backed securities 1,206,548 — 44,174 (1,416) 1,249,306 Commercial mortgage-backed securities 583,502 — 29,723 (1,856) 611,369 Asset-backed securities 48,993 — 261 (1,348) 47,906 Structured securities 209,680 — — (27,772) 181,908 Total $ 4,326,194 $ (2,927) $ 123,239 $ (64,252) $ 4,382,254 NGHC $ 4,014,997 $ (2,629) $ 115,574 $ (59,431) $ 4,068,511 Reciprocal Exchanges 311,197 (298) 7,665 (4,821) 313,743 Total $ 4,326,194 $ (2,927) $ 123,239 $ (64,252) $ 4,382,254 (1) Represents the amount of impairment that has resulted from credit-related factors recorded in net gain (loss) on investments. Amortized Gross Unrealized Fair December 31, 2019 Cost Gains Losses Value U.S. Treasury $ 65,037 $ 1,992 $ (23) $ 67,006 Federal agencies 3,907 8 — 3,915 States and political subdivision bonds 298,345 4,778 (1,441) 301,682 Foreign government 1,762 40 — 1,802 Corporate bonds 1,859,736 59,184 (2,357) 1,916,563 Residential mortgage-backed securities 1,265,830 15,747 (4,117) 1,277,460 Commercial mortgage-backed securities 585,044 27,261 (112) 612,193 Asset-backed securities 74,465 1,194 (48) 75,611 Structured securities 222,565 226 (2,665) 220,126 Total $ 4,376,691 $ 110,430 $ (10,763) $ 4,476,358 NGHC $ 4,057,501 $ 104,951 $ (10,343) $ 4,152,109 Reciprocal Exchanges 319,190 5,479 (420) 324,249 Total $ 4,376,691 $ 110,430 $ (10,763) $ 4,476,358
Available-for-Sale Debt Securities by Contractual Maturity	The amortized cost and fair value of available-for-sale debt securities held as of March 31, 2020, by contractual maturity, are shown in the table below. Actual maturities may differ from contractual maturities because some borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. NGHC Reciprocal Exchanges Total March 31, 2020 Amortized Fair Amortized Fair Amortized Fair Due in one year or less $ 58,383 $ 58,583 $ 110 $ 110 $ 58,493 $ 58,693 Due after one year through five years 1,002,735 1,006,418 127,214 128,065 1,129,949 1,134,483 Due after five years through ten years 983,649 977,567 79,997 78,303 1,063,646 1,055,870 Due after ten years 219,712 209,612 15,351 15,015 235,063 224,627 Mortgage-backed securities 1,750,518 1,816,331 88,525 92,250 1,839,043 1,908,581 Total $ 4,014,997 $ 4,068,511 $ 311,197 $ 313,743 $ 4,326,194 $ 4,382,254
Gross Unrealized Losses	The tables below summarize the gross unrealized losses on debt securities classified as available-for-sale, by length of time the security has continuously been in an unrealized loss position. Less Than 12 Months 12 Months or More Total March 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized States and political subdivision bonds $ 7,204 $ (28) $ 908 $ (4) $ 8,112 $ (32) Foreign government 1,724 (38) — — 1,724 (38) Corporate bonds 891,346 (31,790) — — 891,346 (31,790) Residential mortgage-backed securities 41,121 (1,416) — — 41,121 (1,416) Commercial mortgage-backed securities 55,768 (1,856) — — 55,768 (1,856) Asset-backed securities 32,912 (1,326) 233 (22) 33,145 (1,348) Structured securities 123,710 (14,710) 58,198 (13,062) 181,908 (27,772) Total $ 1,153,785 $ (51,164) $ 59,339 $ (13,088) $ 1,213,124 $ (64,252) NGHC $ 1,027,271 $ (46,838) $ 55,834 $ (12,593) $ 1,083,105 $ (59,431) Reciprocal Exchanges 126,514 (4,326) 3,505 (495) 130,019 (4,821) Total $ 1,153,785 $ (51,164) $ 59,339 $ (13,088) $ 1,213,124 $ (64,252) Less Than 12 Months 12 Months or More Total December 31, 2019 Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury $ 19,903 $ (23) $ 500 $ — $ 20,403 $ (23) States and political subdivision bonds 106,103 (1,415) 2,580 (26) 108,683 (1,441) Corporate bonds 586,817 (2,253) 5,976 (104) 592,793 (2,357) Residential mortgage-backed securities 410,484 (4,074) 3,983 (43) 414,467 (4,117) Commercial mortgage-backed securities 18,250 (105) 748 (7) 18,998 (112) Asset-backed securities 5,406 (29) 920 (19) 6,326 (48) Structured securities 40,979 (94) 109,880 (2,571) 150,859 (2,665) Total $ 1,187,942 $ (7,993) $ 124,587 $ (2,770) $ 1,312,529 $ (10,763) NGHC $ 1,104,244 $ (7,654) $ 117,681 $ (2,689) $ 1,221,925 $ (10,343) Reciprocal Exchanges 83,698 (339) 6,906 (81) 90,604 (420) Total $ 1,187,942 $ (7,993) $ 124,587 $ (2,770) $ 1,312,529 $ (10,763)
Debt Securities, Available-for-sale, Allowance for Credit Loss	The following table displays the roll forward of the allowance for credit losses for the period: Three Months Ended March 31, 2020 Corporate bonds Total Balance, beginning of the period $ — $ — Credit losses on securities not previously recorded 2,927 2,927 Balance, end of the period $ 2,927 $ 2,927
Investment Income	The components of net investment income consisted of the following: Three Months Ended March 31, 2020 2019 Cash and short-term investments $ 278 $ 1,497 Debt securities 32,102 29,467 Other, net (related parties - $(2,525) and $254) (768) 3,508 Investment income $ 31,612 $ 34,472 Investment expenses (1,369) (1,027) Net investment income $ 30,243 $ 33,445 NGHC $ 28,060 $ 31,275 Reciprocal Exchanges 2,183 2,170 Net investment income $ 30,243 $ 33,445
Net Realized Gains (Losses)	The table below indicates realized gains and losses on investments. Other, net includes realized gains and losses from short-term and other investments and foreign exchange. Purchases and sales of investments are recorded on a trade date basis. Realized gains and losses are determined based on the specific identification method. Three Months Ended March 31, 2020 2019 Debt securities, available-for-sale: Gross gains $ 273 $ 136 Gross losses (9) (256) Credit allowance (2,927) — Net realized loss on debt securities, available-for-sale (2,663) (120) Other, net (1) (4,198) 142 Net realized gain (loss) on investments $ (6,861) $ 22 NGHC $ (6,068) $ 766 Reciprocal Exchanges (793) (744) Net realized gain (loss) on investments $ (6,861) $ 22 (1) Includes gains and losses on publicly traded equities and foreign currency.
Credit Quality of Investments	The tables below summarize the credit quality of debt securities, as rated by Standard & Poor’s (“S&P”). If a security is not rated by S&P, an S&P equivalent is determined based on ratings from similar rating agencies. Securities that are not rated are included in the “BB+ and lower” category. NGHC Reciprocal Exchanges March 31, 2020 Amortized Fair Percentage Amortized Fair Percentage U.S. Treasury $ 43,695 $ 47,084 1.2 % $ 12,961 $ 13,970 4.5 % AAA 528,158 543,778 13.4 % 20,845 21,169 6.7 % AA, AA+, AA- 1,618,321 1,675,017 41.2 % 115,089 118,870 37.9 % A, A+, A- 966,417 960,982 23.6 % 108,416 108,375 34.5 % BBB, BBB+, BBB- 830,937 817,798 20.1 % 52,986 50,862 16.2 % BB+ and lower 27,469 23,852 0.5 % 900 497 0.2 % Total $ 4,014,997 $ 4,068,511 100.0 % $ 311,197 $ 313,743 100.0 % NGHC Reciprocal Exchanges December 31, 2019 Amortized Fair Percentage Amortized Fair Percentage U.S. Treasury $ 52,108 $ 53,599 1.3 % $ 12,929 $ 13,407 4.1 % AAA 515,869 537,508 12.9 % 20,947 21,555 6.6 % AA, AA+, AA- 1,677,787 1,697,220 40.9 % 120,113 121,720 37.5 % A, A+, A- 954,312 976,468 23.5 % 116,747 119,041 36.7 % BBB, BBB+, BBB- 795,594 823,239 19.8 % 48,021 48,093 14.8 % BB+ and lower 61,831 64,075 1.6 % 433 433 0.3 % Total $ 4,057,501 $ 4,152,109 100.0 % $ 319,190 $ 324,249 100.0 % The tables below summarize the investment quality of the corporate bond holdings and industry concentrations. March 31, 2020 AAA AA+, A+,A,A- BBB+, BB+ or Fair % of Financial Institutions — % 3.5 % 26.0 % 12.5 % 0.3 % $ 813,631 42.3 % Industrials 0.7 % 2.6 % 22.5 % 29.3 % 0.3 % 1,065,463 55.4 % Utilities/Other — % — % 1.0 % 1.3 % — % 44,339 2.3 % Total 0.7 % 6.1 % 49.5 % 43.1 % 0.6 % $ 1,923,433 100.0 % NGHC 0.3 % 4.9 % 43.9 % 40.5 % 0.6 % $ 1,734,990 90.2 % Reciprocal Exchanges 0.4 % 1.2 % 5.6 % 2.6 % — % 188,443 9.8 % Total 0.7 % 6.1 % 49.5 % 43.1 % 0.6 % $ 1,923,433 100.0 % December 31, 2019 AAA AA+, A+,A,A- BBB+, BB+ or Fair % of Financial Institutions — % 3.6 % 25.0 % 12.1 % 0.3 % $ 785,910 41.0 % Industrials 0.7 % 2.7 % 24.1 % 29.0 % 0.1 % 1,083,959 56.6 % Utilities/Other — % — % 1.0 % 1.4 % — % 46,694 2.4 % Total 0.7 % 6.3 % 50.1 % 42.5 % 0.4 % $ 1,916,563 100.0 % NGHC 0.3 % 5.1 % 44.0 % 40.0 % 0.4 % $ 1,720,962 89.8 % Reciprocal Exchanges 0.4 % 1.2 % 6.1 % 2.5 % — % 195,601 10.2 % Total 0.7 % 6.3 % 50.1 % 42.5 % 0.4 % $ 1,916,563 100.0 %
Cash, Cash Equivalents and Restricted Cash	Cash, cash equivalents, and restricted cash are as follows: March 31, 2020 December 31, 2019 Cash and cash equivalents $ 309,802 $ 135,942 Restricted cash and cash equivalents 30,070 28,521 Total cash, cash equivalents and restricted cash $ 339,872 $ 164,463
Restricted Investments	Restricted investments are as follows: March 31, 2020 December 31, 2019 Securities on deposit with state regulatory authorities $ 81,809 $ 74,061 Restricted investments to trusts in certain reinsurance transactions 42,369 49,502 Total restricted investments $ 124,178 $ 123,563
Other Investments	The table below summarizes the composition of other investments: March 31, 2020 December 31, 2019 Equity method investments (related parties - $105,839 and $109,612) $ 140,897 $ 143,511 Notes receivable (related parties - $130,004 and $129,229) (1) 130,067 129,299 Long-term Certificates of Deposit (CDs), at cost 150 20,150 Investments, at fair value 7,661 9,365 Investments, at cost or amortized cost 8,908 8,962 Total $ 287,683 $ 311,287

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	Assets measured at fair value on a recurring basis are as follows: March 31, 2020 Level 1 Level 2 Level 3 Total Available-for-sale debt securities: U.S. Treasury $ 61,054 $ — $ — $ 61,054 Federal agencies 3,921 — — 3,921 States and political subdivision bonds — 298,533 3,100 301,633 Foreign government — 1,724 — 1,724 Corporate bonds — 1,914,951 8,482 1,923,433 Residential mortgage-backed securities — 1,249,306 — 1,249,306 Commercial mortgage-backed securities — 611,369 — 611,369 Asset-backed securities — 47,906 — 47,906 Structured securities — 181,908 — 181,908 Total available-for-sale debt securities 64,975 4,305,697 11,582 4,382,254 Short-term investments 50,262 20,499 — 70,761 Other investments 3,829 — 3,832 7,661 Total $ 119,066 $ 4,326,196 $ 15,414 $ 4,460,676 NGHC $ 84,817 $ 4,026,924 $ 15,414 $ 4,127,155 Reciprocal Exchanges 34,249 299,272 — 333,521 Total $ 119,066 $ 4,326,196 $ 15,414 $ 4,460,676 December 31, 2019 Level 1 Level 2 Level 3 Total Available-for-sale debt securities: U.S. Treasury $ 67,006 $ — $ — $ 67,006 Federal agencies 3,915 — — 3,915 States and political subdivision bonds — 298,582 3,100 301,682 Foreign government — 1,802 — 1,802 Corporate bonds — 1,908,235 8,328 1,916,563 Residential mortgage-backed securities — 1,277,460 — 1,277,460 Commercial mortgage-backed securities — 612,193 — 612,193 Asset-backed securities — 75,611 — 75,611 Structured securities — 220,126 — 220,126 Total available-for-sale debt securities 70,921 4,394,009 11,428 4,476,358 Short-term investments 59,953 7,400 — 67,353 Other investments 4,881 — 4,484 9,365 Total $ 135,755 $ 4,401,409 $ 15,912 $ 4,553,076 NGHC $ 116,602 $ 4,091,068 $ 15,912 $ 4,223,582 Reciprocal Exchanges 19,153 310,341 — 329,494 Total $ 135,755 $ 4,401,409 $ 15,912 $ 4,553,076
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation	The following tables provide a reconciliation of recurring fair value measurements of the Level 3 financial assets: States and Corporate Other Total Balance as of January 1, 2020 $ 3,100 $ 8,328 $ 4,484 $ 15,912 Total gains (losses) for the period: Included in earnings — — (375) (375) Included in other comprehensive income — 154 — 154 Sales — — (277) (277) Balance as of March 31, 2020 $ 3,100 $ 8,482 $ 3,832 $ 15,414 Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period $ — $ — $ (375) $ (375) Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period $ — $ 154 $ — $ 154 States and Corporate Other Total Balance as of January 1, 2019 $ 3,596 $ 11,767 $ 7,593 $ 22,956 Total gains (losses) for the period: Included in earnings — — (405) (405) Included in other comprehensive income 64 67 — 131 Balance as of March 31, 2019 $ 3,660 $ 11,834 $ 7,188 $ 22,682 Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period $ — $ — $ (405) $ (405) Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period $ 64 $ 67 $ — $ 131
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The following table presents the carrying amount and estimated fair value of debt not carried at fair value, excluding finance lease and other liabilities, as well as the input level used to determine the fair value: March 31, 2020 December 31, 2019 Input Level Carrying amount Fair value Carrying amount Fair value 7.625% Notes Level 2 $ 96,950 $ 83,880 $ 96,928 $ 103,560 6.75% Notes Level 3 347,252 361,628 347,091 371,366 Subordinated Debentures Level 3 72,168 72,118 72,168 72,103 2019 Credit Agreement Level 3 140,000 141,227 140,000 148,272

Deferred Acquisition Costs (Tab

Deferred Acquisition Costs (Tables)	3 Months Ended
	Mar. 31, 2020
Deferred Acquisition Costs [Abstract]
Deferred Policy Acquisition Costs	The following table reflects the amounts of policy acquisition costs deferred and amortized: Three Months Ended March 31, 2020 2019 Property Accident Total Property Accident Total Balance, beginning of the period $ 239,293 $ 24,230 $ 263,523 $ 226,188 $ 25,220 $ 251,408 Additions 154,789 7,431 162,220 145,979 25,101 171,080 Amortization (141,054) (7,321) (148,375) (136,008) (18,303) (154,311) Change in DAC 13,735 110 13,845 9,971 6,798 16,769 Balance, end of the period $ 253,028 $ 24,340 $ 277,368 $ 236,159 $ 32,018 $ 268,177 NGHC $ 230,291 $ 24,340 $ 254,631 $ 215,854 $ 32,018 $ 247,872 Reciprocal Exchanges 22,737 — 22,737 20,305 — 20,305 Balance, end of the period $ 253,028 $ 24,340 $ 277,368 $ 236,159 $ 32,018 $ 268,177

Unpaid Losses and Loss Adjust_2

Unpaid Losses and Loss Adjustment Expense Reserves (Tables)	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense	The following tables present a reconciliation of beginning and ending balances for unpaid losses and LAE: Three Months Ended March 31, 2020 Property Accident NGHC Reciprocal Total Gross balance at beginning of the period $ 2,528,754 $ 151,874 $ 2,680,628 $ 205,786 $ 2,886,414 Less: Reinsurance recoverable at beginning of the period (1,016,368) (11,266) (1,027,634) (84,174) (1,111,808) Net balance at beginning of the period 1,512,386 140,608 1,652,994 121,612 1,774,606 Incurred losses and LAE related to: Current year 563,559 86,409 649,968 41,438 691,406 Prior year 4,471 (4,808) (337) 929 592 Total incurred 568,030 81,601 649,631 42,367 691,998 Paid losses and LAE related to: Current year (204,279) (25,820) (230,099) (18,169) (248,268) Prior year (397,862) (44,076) (441,938) (29,449) (471,387) Total paid (602,141) (69,896) (672,037) (47,618) (719,655) Net balance at end of the period 1,478,275 152,313 1,630,588 116,361 1,746,949 Plus: Reinsurance recoverable at end of the period 1,004,759 14,912 1,019,671 81,573 1,101,244 Gross balance at end of the period $ 2,483,034 $ 167,225 $ 2,650,259 $ 197,934 $ 2,848,193 Three Months Ended March 31, 2019 Property Accident NGHC Reciprocal Total Gross balance at beginning of the period $ 2,507,409 $ 271,280 $ 2,778,689 $ 178,470 $ 2,957,159 Less: Reinsurance recoverable at beginning of the period (1,182,588) (24,575) (1,207,163) (77,979) (1,285,142) Net balance at beginning of the period 1,324,821 246,705 1,571,526 100,491 1,672,017 Incurred losses and LAE related to: Current year 530,549 95,601 626,150 39,973 666,123 Prior year (5,514) (10,852) (16,366) 2,052 (14,314) Total incurred 525,035 84,749 609,784 42,025 651,809 Paid losses and LAE related to: Current year (130,395) (33,681) (164,076) (14,949) (179,025) Prior year (422,560) (53,310) (475,870) (21,478) (497,348) Total paid (552,955) (86,991) (639,946) (36,427) (676,373) Effect of foreign exchange rates — 1,094 1,094 — 1,094 Net balance at end of the period 1,296,901 245,557 1,542,458 106,089 1,648,547 Plus: Reinsurance recoverable at end of the period 1,103,114 28,729 1,131,843 89,933 1,221,776 Gross balance at end of the period $ 2,400,015 $ 274,286 $ 2,674,301 $ 196,022 $ 2,870,323

Reinsurance (Tables)

Reinsurance (Tables)	3 Months Ended
	Mar. 31, 2020
Insurance [Abstract]
Schedule of Reinsurance Recoverable	Reinsurance recoverable is as follows: March 31, 2020 December 31, 2019 Reinsurance recoverable on paid losses $ 300,954 $ 282,500 Reinsurance recoverable on unpaid losses 1,101,244 1,111,808 Allowance for uncollectible reinsurance (517) — Reinsurance recoverable, net $ 1,401,681 $ 1,394,308
Schedule of Effect of Reinsurance on Unpaid Loss and LAE Reserves and Unearned Premiums	The following is the effect of reinsurance on unpaid loss and LAE reserves and unearned premiums: March 31, 2020 December 31, 2019 Assumed Ceded Assumed Ceded Unpaid Loss and LAE reserves $ 46,868 $ 1,101,244 $ 50,884 $ 1,111,808 Unearned premiums 17,193 511,648 15,278 575,747
Schedule of Effect of Reinsurance on Premiums	The following is the effect of reinsurance on premiums and loss and LAE: Three Months Ended March 31, 2020 2019 Premiums: Written Earned Written Earned Direct $ 1,458,533 $ 1,390,150 $ 1,489,188 $ 1,315,705 Assumed 18,021 16,106 20,590 21,000 Total Gross Premium 1,476,554 1,406,256 1,509,778 1,336,705 Ceded (266,951) (331,050) (345,114) (372,548) Net Premium $ 1,209,603 $ 1,075,206 $ 1,164,664 $ 964,157
Schedule of Effect of Reinsurance on Losses	Three Months Ended March 31, 2020 2019 Assumed Ceded Assumed Ceded Loss and LAE $ 6,635 $ 196,486 $ 5,322 $ 209,322

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Schedule of Debt Instruments	The following table represents the Company’s debt: Interest Rate Maturity March 31, 2020 December 31, 2019 Fixed-rate: 6.75% Notes 6.75% 2024 $ 350,000 $ 350,000 7.625% Notes 7.625% 2055 100,000 100,000 Floating-rate: Subordinated Debentures I (1) LIBOR + 3.40% 2035 41,238 41,238 Subordinated Debentures II (2) LIBOR + 4.25% 2037 30,930 30,930 2019 Credit Agreement (3) LIBOR + 1.75% 2023 140,000 140,000 Finance lease liabilities Various Various 20,946 20,477 Other 3.5% Various 7,762 9,342 Unamortized debt issuance costs and unamortized discount (5,798) (5,981) Total carrying amount of debt $ 685,078 $ 686,006 (1) Interest rate was 4.14% and 5.29%, as of March 31, 2020 and December 31, 2019, respectively. (2) Interest rate was 4.99% and 6.14%, as of March 31, 2020 and December 31, 2019, respectively. (3) Weighted-average interest rate was 2.75% and 3.59% as of March 31, 2020 and December 31, 2019, respectively.
Schedule of Interest Expense	The following table presents the Company’s interest expense: Three Months Ended March 31, Interest Payment Frequency 2020 2019 6.75% Notes Semiannually $ 5,906 $ 5,906 7.625% Notes Quarterly 1,906 1,906 Subordinated Debentures Quarterly 997 1,163 2016 Credit Agreement Quarterly — 1,211 2019 Credit Agreement Quarterly 1,215 529 Finance lease liabilities Various 371 294 Other (1) Various 1,385 1,990 Total interest expense $ 11,780 $ 12,999 (1) Includes interest for other liabilities, interest credited on funds held balances and accretion of debt issuance costs.
Schedule of Maturities of Long-term Debt	Maturities of the Company’s debt for the years subsequent to March 31, 2020 are as follows: 2020 (remaining nine months) 2021 2022 2023 2024 2025 Thereafter Total 6.75% Notes $ — $ — $ — $ — $ 350,000 $ — $ — $ 350,000 7.625% Notes — — — — — — 100,000 100,000 Subordinated Debentures I — — — — — — 41,238 41,238 Subordinated Debentures II — — — — — — 30,930 30,930 2019 Credit Agreement — — — 140,000 — — — 140,000 Finance lease liabilities 5,380 5,664 3,439 2,144 1,360 735 2,224 20,946 Other 4,819 2,943 — — — — — 7,762 Total principal amount of debt $ 10,199 $ 8,607 $ 3,439 $ 142,144 $ 351,360 $ 735 $ 174,392 $ 690,876 Unamortized debt issuance costs and unamortized discount (5,798) Carrying amount of debt $ 685,078

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Schedule of Preferred Stock	A summary description of the terms of these series of preferred stock is presented in the table below: Series Dividend rate Shares of preferred stock issued Depositary shares issued Liquidation preference per share Aggregate liquidation preference A 7.50 % 2,200,000 — $ 25 $ 55,000 B 7.50 % 165,000 6,600,000 $ 1,000 $ 165,000 C 7.50 % 200,000 8,000,000 $ 1,000 $ 200,000 D Fixed/ Floating (1) 120 — $ 250,000 $ 30,000 (1) Dividend rate is fixed at 7.00% prior to July 15, 2023 and floating at six-month LIBOR plus 5.4941% thereafter.
Schedule of Dividends Declared	The following tables present the class of stock, declaration date and dividends paid per share: Class of Stock Declaration Date Dividend Dividend Per Depositary Share Common stock February 20, 2020 $ 0.05 Preferred stock Series A February 20, 2020 $ 0.46875 Preferred stock Series B and Series C February 20, 2020 $ 18.75 $ 0.46875 Class of Stock Declaration Date Dividend Dividend Per Depositary Share Common stock February 25, 2019 $ 0.04 Preferred stock Series A February 25, 2019 $ 0.46875 Preferred stock Series B and Series C February 25, 2019 $ 18.75 $ 0.46875

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Stock-based Compensation, Stock Options, Activity	A summary of the stock option awards granted under the prior plan is shown below: Shares Subject to Options Outstanding Three Months Ended March 31, 2020 Number of Shares Weighted- Weighted-Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at beginning of the period 3,025,587 $ 9.83 Exercised (120,738) 3.67 Outstanding and exercisable at end of the period 2,904,849 $ 10.09 3.0 $ 18,862 (1) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing price of the Company’s common stock of $16.55, as reported on the Nasdaq Global Market on March 31, 2020.
Schedule of Stock-based Compensation, Restricted Stock Units Award Activity	A summary of the RSUs is shown below: RSUs Three Months Ended March 31, 2020 Number of RSUs Weighted-Average Grant Date Fair Value Non-vested at beginning of the period 1,033,631 $ 23.98 Granted 543,997 21.52 Vested (381,676) 23.58 Non-vested at end of the period 1,195,952 $ 22.99

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is a summary of the elements used in calculating basic and diluted earnings per common share: Three Months Ended March 31, 2020 2019 Numerator: Net income attributable to NGHC $ 100,759 $ 91,758 Preferred stock dividends - nonconvertible (7,875) (7,875) Preferred stock dividends - convertible — — Numerator for basic EPS 92,884 83,883 Effect of dilutive securities: Preferred stock dividends - convertible — — Numerator for diluted EPS - after assumed conversions $ 92,884 $ 83,883 Denominator: Denominator for basic EPS - weighted-average shares outstanding 113,557,441 113,014,711 Effect of dilutive securities: Employee stock options 1,454,379 1,939,844 RSUs 274,051 331,198 Convertible preferred stock 789,473 789,473 Dilutive potential common shares 2,517,903 3,060,515 Denominator for diluted EPS - weighted-average shares outstanding and assumed conversions 116,075,344 116,075,226 Basic EPS $ 0.82 $ 0.74 Diluted EPS $ 0.80 $ 0.72

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Schedule of Segment Reporting Information by Segment	The following tables summarize the results of operations of the operating segments: Three Months Ended March 31, 2020 Property Accident Corporate Total Underwriting revenues: Gross premium written $ 1,289,529 $ 187,025 $ — $ 1,476,554 Ceded premiums (248,142) (18,809) — (266,951) Net premium written 1,041,387 168,216 — 1,209,603 Change in unearned premium (130,887) (3,510) — (134,397) Net earned premium 910,500 164,706 — 1,075,206 Ceding commission income 49,745 560 — 50,305 Service and fee income 98,917 80,524 — 179,441 Total underwriting revenues 1,059,162 245,790 — 1,304,952 Underwriting expenses: Loss and loss adjustment expense 610,397 81,601 — 691,998 Acquisition costs and other underwriting expenses 159,771 68,471 — 228,242 General and administrative expenses 207,817 59,752 — 267,569 Total underwriting expenses 977,985 209,824 — 1,187,809 Underwriting income 81,177 35,966 — 117,143 Net investment income — — 30,243 30,243 Net loss on investments — — (6,861) (6,861) Interest expense — — (11,780) (11,780) Provision for income taxes — — (28,172) (28,172) Net loss attributable to noncontrolling interest — — 186 186 Net income attributable to NGHC $ 81,177 $ 35,966 $ (16,384) $ 100,759 Three Months Ended March 31, 2019 Property Accident Corporate Total Underwriting revenues: Gross premium written $ 1,251,234 $ 258,544 $ — $ 1,509,778 Ceded premiums (286,751) (58,363) — (345,114) Net premium written 964,483 200,181 — 1,164,664 Change in unearned premium (161,906) (38,601) — (200,507) Net earned premium 802,577 161,580 — 964,157 Ceding commission income 66,943 2,591 — 69,534 Service and fee income 104,495 61,012 — 165,507 Total underwriting revenues 974,015 225,183 — 1,199,198 Underwriting expenses: Loss and loss adjustment expense 567,060 84,749 — 651,809 Acquisition costs and other underwriting expenses 154,070 57,848 — 211,918 General and administrative expenses 189,456 58,638 — 248,094 Total underwriting expenses 910,586 201,235 — 1,111,821 Underwriting income 63,429 23,948 — 87,377 Net investment income — — 33,445 33,445 Net gain on investments — — 22 22 Interest expense — — (12,999) (12,999) Provision for income taxes — — (22,506) (22,506) Net loss attributable to noncontrolling interest — — 6,419 6,419 Net income attributable to NGHC $ 63,429 $ 23,948 $ 4,381 $ 91,758 The following tables summarize the financial position of the operating segments: March 31, 2020 Property Accident Corporate Total Premiums and other receivables, net $ 1,373,437 $ 167,928 $ 395 $ 1,541,760 Deferred acquisition costs 253,028 24,340 — 277,368 Reinsurance recoverable, net 1,380,374 21,307 — 1,401,681 Prepaid reinsurance premiums 511,613 35 — 511,648 Goodwill and Intangible assets, net 429,784 107,112 — 536,896 Prepaid and other assets 53,545 27,577 5,237 86,359 Corporate and other assets — — 5,504,862 5,504,862 Total assets $ 4,001,781 $ 348,299 $ 5,510,494 $ 9,860,574 December 31, 2019 Property Accident Corporate Total Premiums and other receivables, net $ 1,292,813 $ 131,877 $ 4,258 $ 1,428,948 Deferred acquisition costs 239,293 24,230 — 263,523 Reinsurance recoverable, net 1,377,284 17,024 — 1,394,308 Prepaid reinsurance premiums 575,712 35 — 575,747 Goodwill and Intangible assets, net 436,724 108,427 — 545,151 Prepaid and other assets 56,960 32,852 4,830 94,642 Corporate and other assets — — 5,454,215 5,454,215 Total assets $ 3,978,786 $ 314,445 $ 5,463,303 $ 9,756,534
Revenue from External Customers by Product Type	The following tables summarize service and fee income by source within each operating segment: Three Months Ended March 31, 2020 2019 Property Accident Total Property Accident Total Commission revenue $ 18,751 $ 29,632 $ 48,383 $ 27,210 $ 24,771 $ 51,981 Finance and processing fees 35,789 2,471 38,260 32,436 2,024 34,460 Group health administrative fees — 29,975 29,975 — 23,505 23,505 Installment fees 25,088 — 25,088 24,170 — 24,170 Late payment fees 7,833 12 7,845 8,293 87 8,380 Other service and fee income 11,456 18,434 29,890 12,386 10,625 23,011 Total $ 98,917 $ 80,524 $ 179,441 $ 104,495 $ 61,012 $ 165,507 NGHC $ 97,760 $ 80,524 $ 178,284 $ 103,125 $ 61,012 $ 164,137 Reciprocal Exchanges 1,157 — 1,157 1,370 — 1,370 Total $ 98,917 $ 80,524 $ 179,441 $ 104,495 $ 61,012 $ 165,507 The following tables show an analysis of premiums and fee income by product line: Three Months Ended March 31, Gross Premium Written 2020 2019 Property and Casualty Personal Auto $ 794,497 $ 766,681 Homeowners 165,253 152,042 RV/Packaged 53,128 51,851 Small Business Auto 72,752 85,878 Lender-placed Insurance 95,444 75,938 Other 16,602 13,275 Total Property and Casualty 1,197,676 1,145,665 Accident and Health Group 87,538 64,938 Individual 99,487 84,192 International — 109,414 Total Accident and Health 187,025 258,544 Total NGHC $ 1,384,701 $ 1,404,209 Reciprocal Exchanges Personal Auto $ 31,809 $ 36,862 Homeowners 59,236 67,800 Other 808 907 Total Reciprocal Exchanges $ 91,853 $ 105,569 Total Gross Premium Written $ 1,476,554 $ 1,509,778 Three Months Ended March 31, Net Premium Written 2020 2019 Property and Casualty Personal Auto $ 702,307 $ 658,920 Homeowners 88,543 85,245 RV/Packaged 51,978 51,597 Small Business Auto 58,599 74,186 Lender-placed Insurance 77,469 42,070 Other 7,196 3,510 Total Property and Casualty 986,092 915,528 Accident and Health Group 69,471 53,950 Individual 98,745 84,123 International — 62,108 Total Accident and Health 168,216 200,181 Total NGHC $ 1,154,308 $ 1,115,709 Reciprocal Exchanges Personal Auto $ 29,074 $ 15,645 Homeowners 25,925 33,016 Other 296 294 Total Reciprocal Exchanges $ 55,295 $ 48,955 Total Net Premium Written $ 1,209,603 $ 1,164,664 Three Months Ended March 31, Net Earned Premium 2020 2019 Property and Casualty Personal Auto $ 579,502 $ 510,554 Homeowners 91,483 84,058 RV/Packaged 49,292 50,305 Small Business Auto 59,425 67,633 Lender-placed Insurance 69,667 41,718 Other 3,533 2,651 Total Property and Casualty 852,902 756,919 Accident and Health Group 69,470 53,963 Individual 95,236 82,235 International — 25,382 Total Accident and Health 164,706 161,580 NGHC Total $ 1,017,608 $ 918,499 Reciprocal Exchanges Personal Auto $ 32,923 $ 15,861 Homeowners 24,333 29,491 Other 342 306 Total Reciprocal Exchanges 57,598 45,658 Total Net Earned Premium $ 1,075,206 $ 964,157 Three Months Ended March 31, Fee Income 2020 2019 Property and Casualty Service and Fee Income $ 97,760 $ 103,125 Ceding Commission Income 36,031 48,409 Total Property and Casualty 133,791 151,534 Accident and Health Service and Fee Income Group 40,482 30,374 Individual 2,217 2,136 Third-Party Fee 37,825 28,502 Total Service and Fee Income 80,524 61,012 Ceding Commission Income 560 2,591 Total Accident and Health 81,084 63,603 NGHC Total $ 214,875 $ 215,137 Reciprocal Exchanges Service and Fee Income $ 1,157 $ 1,370 Ceding Commission Income 13,714 18,534 Total Reciprocal Exchanges $ 14,871 $ 19,904 Total Fee Income $ 229,746 $ 235,041

Allowance for Expected Credit_3

Allowance for Expected Credit Losses - Premiums and Other receivables - Changes In Allowance for Expected Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle
Premiums and other receivables, net	$ 1,541,760	$ 1,428,948
Premium Receivable, Allowance for Credit Loss
Balance, beginning of the period	24,067
Current period change for expected credit losses (1)	25,766
Write-offs of uncollectible premiums and other receivables	(23,481)
Balance, end of the period	27,114
Cumulative Effect, Period of Adoption, Adjustment
Premium Receivable, Allowance for Credit Loss
Balance, beginning of the period	$ 762

Allowance for Expected Credit_4

Allowance for Expected Credit Losses - Reinsurance Recoverable - Changes In Allowance for Expected Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle
Reinsurance recoverable, net	$ 1,401,681	$ 1,394,308
Reinsurance Recoverable, Allowance for Credit Loss
Balance, beginning of the period	0
Write-offs of uncollectible reinsurance	0
Write-offs of uncollectible reinsurance	0
Balance, end of the period	517
Cumulative Effect, Period of Adoption, Adjustment
Reinsurance Recoverable, Allowance for Credit Loss
Balance, beginning of the period	$ 517

Investments - Available-for-Sal

Investments - Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Amortized Cost	$ 4,326,194	$ 4,376,691
Allowance for Credit Losses	(2,927)	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Total	123,239	110,430
Total	(64,252)	(10,763)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	4,382,254	4,476,358
Fair Value	4,382,254	4,476,358
Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	311,197	319,190
Allowance for Credit Losses	(298)
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Total	7,665	5,479
Total	(4,821)	(420)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	313,743	324,249
Fair Value	313,743	324,249
NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	4,014,997	4,057,501
Allowance for Credit Losses	(2,629)
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Total	115,574	104,951
Total	(59,431)	(10,343)
Debt Securities, Available-for-sale [Abstract]
Fair Value	4,068,511	4,152,109
U.S. Treasury
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	56,656	65,037
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	4,398	1,992
Debt Securities	0	(23)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	61,054	67,006
U.S. Treasury | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	43,695	52,108
Debt Securities, Available-for-sale [Abstract]
Fair Value	47,084	53,599
Federal agencies
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	3,907	3,907
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	14	8
Debt Securities	0	0
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	3,921	3,915
States and political subdivision bonds
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	292,734	298,345
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	8,931	4,778
Debt Securities	(32)	(1,441)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	301,633	301,682
Foreign government
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	1,762	1,762
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	0	40
Debt Securities	(38)	0
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	1,724	1,802
Corporate bonds
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	1,922,412	1,859,736
Allowance for Credit Losses	(2,927)	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	35,738	59,184
Debt Securities	(31,790)	(2,357)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	1,923,433	1,916,563
Residential mortgage-backed securities
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	1,206,548	1,265,830
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	44,174	15,747
Debt Securities	(1,416)	(4,117)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	1,249,306	1,277,460
Commercial mortgage-backed securities
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	583,502	585,044
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	29,723	27,261
Debt Securities	(1,856)	(112)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	611,369	612,193
Asset-backed securities
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	48,993	74,465
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	261	1,194
Debt Securities	(1,348)	(48)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	47,906	75,611
Structured securities
Schedule of Available-for-sale Securities
Debt Securities, Available-for-sale, Amortized Cost	209,680	222,565
Allowance for Credit Losses	0
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Abstract]
Debt Securities	0	226
Debt Securities	(27,772)	(2,665)
Debt Securities, Available-for-sale [Abstract]
Debt securities, available-for-sale	$ 181,908	$ 220,126

Investments - Available-for-S_2

Investments - Available-for-Sale Debt Securities by Contractual Maturity (Details) $ in Thousands	Mar. 31, 2020USD ($)
Amortized Cost
Due in one year or less	$ 58,493
Due after one year through five years	1,129,949
Due after five years through ten years	1,063,646
Due after ten years	235,063
Mortgage-backed securities	1,839,043
Debt Securities	4,326,194
Fair Value
Due in one year or less	58,693
Due after one year through five years	1,134,483
Due after five years through ten years	1,055,870
Due after ten years	224,627
Mortgage-backed securities	1,908,581
Debt Securities	4,382,254
Reciprocal Exchanges
Amortized Cost
Due in one year or less	110
Due after one year through five years	127,214
Due after five years through ten years	79,997
Due after ten years	15,351
Mortgage-backed securities	88,525
Debt Securities	311,197
Fair Value
Due in one year or less	110
Due after one year through five years	128,065
Due after five years through ten years	78,303
Due after ten years	15,015
Mortgage-backed securities	92,250
Debt Securities	313,743
NGHC, excluding Reciprocal Exchanges
Amortized Cost
Due in one year or less	58,383
Due after one year through five years	1,002,735
Due after five years through ten years	983,649
Due after ten years	219,712
Mortgage-backed securities	1,750,518
Debt Securities	4,014,997
Fair Value
Due in one year or less	58,583
Due after one year through five years	1,006,418
Due after five years through ten years	977,567
Due after ten years	209,612
Mortgage-backed securities	1,816,331
Debt Securities	$ 4,068,511

Investments - Gross Unrealized

Investments - Gross Unrealized Losses (Details) $ in Thousands	Mar. 31, 2020USD ($)security	Dec. 31, 2019USD ($)security
Schedule of Available-for-sale Securities
Less Than 12 Months	$ 1,153,785	$ 1,187,942
12 Months or More	59,339	124,587
Total	1,213,124	1,312,529
Less Than 12 Months	(51,164)	(7,993)
12 Months or More	(13,088)	(2,770)
Total	$ (64,252)	$ (10,763)
Number of securities with gross unrealized loss | security	1,663	1,337
25% of amortized cost or cost	25.00%	25.00%
Reciprocal Exchanges
Schedule of Available-for-sale Securities
Less Than 12 Months	$ 126,514	$ 83,698
12 Months or More	3,505	6,906
Total	130,019	90,604
Less Than 12 Months	(4,326)	(339)
12 Months or More	(495)	(81)
Total	(4,821)	(420)
NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Less Than 12 Months	1,027,271	1,104,244
12 Months or More	55,834	117,681
Total	1,083,105	1,221,925
Less Than 12 Months	(46,838)	(7,654)
12 Months or More	(12,593)	(2,689)
Total	(59,431)	(10,343)
U.S. Treasury
Schedule of Available-for-sale Securities
Less Than 12 Months		19,903
12 Months or More		500
Total		20,403
Less Than 12 Months		(23)
12 Months or More		0
Total		(23)
States and political subdivision bonds
Schedule of Available-for-sale Securities
Less Than 12 Months	7,204	106,103
12 Months or More	908	2,580
Total	8,112	108,683
Less Than 12 Months	(28)	(1,415)
12 Months or More	(4)	(26)
Total	(32)	(1,441)
Foreign government
Schedule of Available-for-sale Securities
Less Than 12 Months	1,724
12 Months or More	0
Total	1,724
Less Than 12 Months	(38)
12 Months or More	0
Total	(38)
Corporate bonds
Schedule of Available-for-sale Securities
Less Than 12 Months	891,346	586,817
12 Months or More	0	5,976
Total	891,346	592,793
Less Than 12 Months	(31,790)	(2,253)
12 Months or More	0	(104)
Total	(31,790)	(2,357)
Residential mortgage-backed securities
Schedule of Available-for-sale Securities
Less Than 12 Months	41,121	410,484
12 Months or More	0	3,983
Total	41,121	414,467
Less Than 12 Months	(1,416)	(4,074)
12 Months or More	0	(43)
Total	(1,416)	(4,117)
Commercial mortgage-backed securities
Schedule of Available-for-sale Securities
Less Than 12 Months	55,768	18,250
12 Months or More	0	748
Total	55,768	18,998
Less Than 12 Months	(1,856)	(105)
12 Months or More	0	(7)
Total	(1,856)	(112)
Asset-backed securities
Schedule of Available-for-sale Securities
Less Than 12 Months	32,912	5,406
12 Months or More	233	920
Total	33,145	6,326
Less Than 12 Months	(1,326)	(29)
12 Months or More	(22)	(19)
Total	(1,348)	(48)
Structured securities
Schedule of Available-for-sale Securities
Less Than 12 Months	123,710	40,979
12 Months or More	58,198	109,880
Total	181,908	150,859
Less Than 12 Months	(14,710)	(94)
12 Months or More	(13,062)	(2,571)
Total	$ (27,772)	$ (2,665)

Investments - Allowance For Cre

Investments - Allowance For Credit Losses (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Debt Securities, Available-for-sale, Allowance for Credit Loss
Balance, beginning of the period	$ 0
Credit losses on securities not previously recorded	2,927
Balance, end of the period	2,927
Corporate bonds
Debt Securities, Available-for-sale, Allowance for Credit Loss
Balance, beginning of the period	0
Credit losses on securities not previously recorded	2,927
Balance, end of the period	$ 2,927

Investments - Investment Income

Investments - Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Investment Income
Investment income	$ 31,612	$ 34,472
Investment expenses	(1,369)	(1,027)
Net investment income	30,243	33,445
Reciprocal Exchanges
Net Investment Income
Net investment income	2,183	2,170
NGHC, excluding Reciprocal Exchanges
Net Investment Income
Net investment income	28,060	31,275
Cash and short-term investments
Net Investment Income
Investment Income	278	1,497
Debt securities
Net Investment Income
Investment Income	32,102	29,467
Other, net
Net Investment Income
Other, net (related parties - $(2,525) and $254)	(768)	3,508
Other, net | Related Parties
Net Investment Income
Other, net (related parties - $(2,525) and $254)	$ (2,525)	$ 254

Investments - Net Realized Gain

Investments - Net Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Gain (Loss) on Investments
Credit losses on securities not previously recorded	$ 2,927
Other Net Realized Gain (Loss) on Investments	(4,198)	$ 142
Net realized gain (loss) on Investments	(6,861)	22
Reciprocal Exchanges
Gain (Loss) on Investments
Net realized gain (loss) on Investments	(793)	(744)
NGHC, excluding Reciprocal Exchanges
Gain (Loss) on Investments
Net realized gain (loss) on Investments	(6,068)	766
Debt securities
Gain (Loss) on Investments
Debt securities, available-for-sale, gross gains	273	136
Debt securities, available-for-sale, gross losses	(9)	(256)
Credit losses on securities not previously recorded	2,927	0
Net realized loss on debt securities, available-for-sale	$ (2,663)	$ (120)

Investments - Credit Quality of

Investments - Credit Quality of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Amortized Cost	$ 4,326,194	$ 4,376,691
Fair Value	4,382,254	4,476,358
NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	4,014,997	4,057,501
Fair Value	4,068,511	4,152,109
Debt securities | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	4,014,997	4,057,501
Fair Value	$ 4,068,511	$ 4,152,109
Percentage	100.00%	100.00%
Debt securities | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 311,197	$ 319,190
Fair Value	$ 313,743	$ 324,249
Percentage	100.00%	100.00%
U.S. Treasury | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 43,695	$ 52,108
Fair Value	$ 47,084	$ 53,599
Percentage	1.20%	1.30%
U.S. Treasury | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 12,961	$ 12,929
Fair Value	$ 13,970	$ 13,407
Percentage	4.50%	4.10%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, AAA Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 528,158	$ 515,869
Fair Value	$ 543,778	$ 537,508
Percentage	13.40%	12.90%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, AAA Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 20,845	$ 20,947
Fair Value	$ 21,169	$ 21,555
Percentage	6.70%	6.60%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, AA, AA Plus, and AA Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 1,618,321	$ 1,677,787
Fair Value	$ 1,675,017	$ 1,697,220
Percentage	41.20%	40.90%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, AA, AA Plus, and AA Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 115,089	$ 120,113
Fair Value	$ 118,870	$ 121,720
Percentage	37.90%	37.50%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, A, A Plus, and A Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 966,417	$ 954,312
Fair Value	$ 960,982	$ 976,468
Percentage	23.60%	23.50%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, A, A Plus, and A Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 108,416	$ 116,747
Fair Value	$ 108,375	$ 119,041
Percentage	34.50%	36.70%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 830,937	$ 795,594
Fair Value	$ 817,798	$ 823,239
Percentage	20.10%	19.80%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 52,986	$ 48,021
Fair Value	$ 50,862	$ 48,093
Percentage	16.20%	14.80%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, BB Plus and Lower Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 27,469	$ 61,831
Fair Value	$ 23,852	$ 64,075
Percentage	0.50%	1.60%
Debt Securities, Excluding US Treasury Securities | Standard & Poor's, BB Plus and Lower Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Amortized Cost	$ 900	$ 433
Fair Value	$ 497	$ 433
Percentage	0.20%	0.30%

Investments - Investment Qualit

Investments - Investment Quality of Corporate Bonds (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Fair Value	$ 4,382,254	$ 4,476,358
NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Fair Value	4,068,511	4,152,109
Corporate Debt Securities
Schedule of Available-for-sale Securities
Fair Value	$ 1,923,433	$ 1,916,563
% of Corporate Bonds Portfolio	100.00%	100.00%
Corporate Debt Securities | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Fair Value	$ 188,443	$ 195,601
% of Corporate Bonds Portfolio	9.80%	10.20%
Corporate Debt Securities | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Fair Value	$ 1,734,990	$ 1,720,962
% of Corporate Bonds Portfolio	90.20%	89.80%
Corporate Debt Securities | Standard & Poor's, AAA Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.70%	0.70%
Corporate Debt Securities | Standard & Poor's, AAA Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.40%	0.40%
Corporate Debt Securities | Standard & Poor's, AAA Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.30%	0.30%
Corporate Debt Securities | Standard & Poor's, AA, AA Plus, and AA Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	6.10%	6.30%
Corporate Debt Securities | Standard & Poor's, AA, AA Plus, and AA Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	1.20%	1.20%
Corporate Debt Securities | Standard & Poor's, AA, AA Plus, and AA Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	4.90%	5.10%
Corporate Debt Securities | Standard & Poor's, A, A Plus, and A Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	49.50%	50.10%
Corporate Debt Securities | Standard & Poor's, A, A Plus, and A Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	5.60%	6.10%
Corporate Debt Securities | Standard & Poor's, A, A Plus, and A Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	43.90%	44.00%
Corporate Debt Securities | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	43.10%	42.50%
Corporate Debt Securities | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	2.60%	2.50%
Corporate Debt Securities | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	40.50%	40.00%
Corporate Debt Securities | Standard & Poor's, BB Plus and Lower Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.60%	0.40%
Corporate Debt Securities | Standard & Poor's, BB Plus and Lower Rating | Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.00%	0.00%
Corporate Debt Securities | Standard & Poor's, BB Plus and Lower Rating | NGHC, excluding Reciprocal Exchanges
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.60%	0.40%
Corporate Debt Securities | Financial Institutions
Schedule of Available-for-sale Securities
Fair Value	$ 813,631	$ 785,910
% of Corporate Bonds Portfolio	42.30%	41.00%
Corporate Debt Securities | Financial Institutions | Standard & Poor's, AAA Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.00%	0.00%
Corporate Debt Securities | Financial Institutions | Standard & Poor's, AA, AA Plus, and AA Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	3.50%	3.60%
Corporate Debt Securities | Financial Institutions | Standard & Poor's, A, A Plus, and A Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	26.00%	25.00%
Corporate Debt Securities | Financial Institutions | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	12.50%	12.10%
Corporate Debt Securities | Financial Institutions | Standard & Poor's, BB Plus and Lower Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.30%	0.30%
Corporate Debt Securities | Industrials
Schedule of Available-for-sale Securities
Fair Value	$ 1,065,463	$ 1,083,959
% of Corporate Bonds Portfolio	55.40%	56.60%
Corporate Debt Securities | Industrials | Standard & Poor's, AAA Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.70%	0.70%
Corporate Debt Securities | Industrials | Standard & Poor's, AA, AA Plus, and AA Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	2.60%	2.70%
Corporate Debt Securities | Industrials | Standard & Poor's, A, A Plus, and A Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	22.50%	24.10%
Corporate Debt Securities | Industrials | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	29.30%	29.00%
Corporate Debt Securities | Industrials | Standard & Poor's, BB Plus and Lower Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.30%	0.10%
Corporate Debt Securities | Utilities And Other
Schedule of Available-for-sale Securities
Fair Value	$ 44,339	$ 46,694
% of Corporate Bonds Portfolio	2.30%	2.40%
Corporate Debt Securities | Utilities And Other | Standard & Poor's, AAA Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.00%	0.00%
Corporate Debt Securities | Utilities And Other | Standard & Poor's, AA, AA Plus, and AA Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.00%	0.00%
Corporate Debt Securities | Utilities And Other | Standard & Poor's, A, A Plus, and A Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	1.00%	1.00%
Corporate Debt Securities | Utilities And Other | Standard & Poor's, BBB, BBB Plus, and BBB Minus Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	1.30%	1.40%
Corporate Debt Securities | Utilities And Other | Standard & Poor's, BB Plus and Lower Rating
Schedule of Available-for-sale Securities
Investment quality - corporate bond holdings and industry concentrations	0.00%	0.00%

Investments - Cash and Cash Equ

Investments - Cash and Cash Equivalents, Restricted Cash and Restricted Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Cash and cash equivalents	$ 309,802	$ 135,942
Restricted cash and cash equivalents	30,070	28,521
Total cash, cash equivalents and restricted cash	339,872	164,463	$ 220,272	$ 233,583
Securities on deposit with state regulatory authorities	81,809	74,061
Restricted investments to trusts in certain reinsurance transactions	42,369	49,502
Total restricted investments	$ 124,178	$ 123,563

Investments - Short-term and Ot

Investments - Short-term and Other Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Summary of Investment Holdings
Other investments	$ 287,683	$ 311,287
Related Parties
Summary of Investment Holdings
Other investments	235,843	238,841
Equity method investments
Summary of Investment Holdings
Other investments	140,897	143,511
Equity method investments | Related Parties
Summary of Investment Holdings
Other investments	105,839	109,612
Notes receivable
Summary of Investment Holdings
Other investments	130,067	129,299
Notes receivable | Related Parties
Summary of Investment Holdings
Other investments	130,004	129,229
Long-term Certificates of Deposit (CDs), at cost
Summary of Investment Holdings
Other investments	150	20,150
Investments, at fair value
Summary of Investment Holdings
Other investments	7,661	9,365
Investments, at cost or amortized cost
Summary of Investment Holdings
Other investments	$ 8,908	$ 8,962

Investments - Related Parties -

Investments - Related Parties - LSC Entity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)contract	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Other, net
Schedule of Equity Method Investments
Other, net (related parties - $(2,525) and $254)	$ (768)	$ 3,508
Related Parties | Other, net
Schedule of Equity Method Investments
Other, net (related parties - $(2,525) and $254)	$ (2,525)	254
LSC Entities | AmTrust Financial Services, Inc.
Schedule of Equity Method Investments
Ownership percentage	50.00%
LSC Entities | VIE, Not primary beneficiary | Related Parties
Schedule of Equity Method Investments
Ownership percentage	50.00%
Life Settlement Contracts, Investment Method, Number of Contracts | contract	1
Equity investment in unconsolidated subsidiaries	$ 45,291		$ 49,477
Equity in earnings (losses)	$ (4,186)	$ 586
LSC Entities investment in LP
Schedule of Equity Method Investments
Ownership percentage	30.00%

Investments - Related Parties_2

Investments - Related Parties - 800 Superior, LLC (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Parties | 800 Superior, LLC
Schedule of Equity Method Investments
Rent expense	$ 761	$ 742
800 Superior, LLC | AmTrust Financial Services, Inc.
Schedule of Equity Method Investments
Ownership percentage	50.00%
800 Superior, LLC | VIE, Not primary beneficiary | Related Parties
Schedule of Equity Method Investments
Ownership percentage	50.00%
Equity investment in unconsolidated subsidiaries	$ 9,487		$ 9,365
Equity in earnings (losses)	$ 122	$ (293)

Investments - Related Parties_3

Investments - Related Parties - North Dearborn (Details) - North Dearborn Building Company, L.P. - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
AmTrust Financial Services, Inc.
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	45.00%
NA Advisors GP LLC
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	10.00%
Limited Partnership, Percentage of Profit Interest	10.00%
VIE, Not primary beneficiary | Related Parties
Schedule of Equity Method Investments
Ownership percentage	45.00%
Equity investment in unconsolidated subsidiaries	$ 5,702		$ 5,317
Equity in earnings (losses)	430	$ (28)
Distributions	$ 45	$ 0

Investments - Related Parties_4

Investments - Related Parties - 4455 LBJ Freeway, LLC (Details) - 4455 LBJ Freeway, LLC - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
AmTrust Financial Services, Inc.
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	50.00%
Related Parties
Schedule of Equity Method Investments
Equity investment in unconsolidated subsidiaries	$ 1,234		$ 1,074
Related Parties | 4455 LBJ Freeway, LLC
Schedule of Equity Method Investments
Rent expense	$ 613	$ 555
VIE, Not primary beneficiary | Related Parties
Schedule of Equity Method Investments
Ownership percentage	50.00%
Equity in earnings (losses)	$ 160	$ 23

Investments - Related Parties_5

Investments - Related Parties - Illinois Center Building, L.P. (Details) - Illinois Center Building, L.P. - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
ACP Re Group, Inc.
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	37.50%
ACP Re
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	15.00%
NA Advisors GP LLC
Schedule of Equity Method Investments
Limited Partnership, Percentage Participation	10.00%
Limited Partnership, Percentage of Profit Interest	10.00%
VIE, Not primary beneficiary | Related Parties
Schedule of Equity Method Investments
Ownership percentage	37.50%
Equity investment in unconsolidated subsidiaries	$ 44,125		$ 44,379
Equity in earnings (losses)	$ (254)	$ (1,222)

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	$ 4,382,254	$ 4,476,358
Short-term investments	70,761	67,353
Other investments	287,683	311,287
Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	4,382,254	4,476,358
Total	4,460,676	4,553,076
Recurring | Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	333,521	329,494
Recurring | NGHC, excluding Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	4,127,155	4,223,582
Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	64,975	70,921
Total	119,066	135,755
Level 1 | Recurring | Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	34,249	19,153
Level 1 | Recurring | NGHC, excluding Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	84,817	116,602
Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	4,305,697	4,394,009
Total	4,326,196	4,401,409
Level 2 | Recurring | Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	299,272	310,341
Level 2 | Recurring | NGHC, excluding Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	4,026,924	4,091,068
Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	11,582	11,428
Total	15,414	15,912
Level 3 | Recurring | Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	0	0
Level 3 | Recurring | NGHC, excluding Reciprocal Exchanges
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Total	15,414	15,912
U.S. Treasury
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	61,054	67,006
U.S. Treasury | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	61,054	67,006
U.S. Treasury | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	61,054	67,006
U.S. Treasury | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
U.S. Treasury | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Federal agencies
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	3,921	3,915
Federal agencies | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	3,921	3,915
Federal agencies | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	3,921	3,915
Federal agencies | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Federal agencies | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
States and political subdivision bonds
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	301,633	301,682
States and political subdivision bonds | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	301,633	301,682
States and political subdivision bonds | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
States and political subdivision bonds | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	298,533	298,582
States and political subdivision bonds | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	3,100	3,100
Foreign government
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,724	1,802
Foreign government | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,724	1,802
Foreign government | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Foreign government | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,724	1,802
Foreign government | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Corporate bonds
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,923,433	1,916,563
Corporate bonds | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,923,433	1,916,563
Corporate bonds | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Corporate bonds | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,914,951	1,908,235
Corporate bonds | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	8,482	8,328
Residential mortgage-backed securities
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,249,306	1,277,460
Residential mortgage-backed securities | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,249,306	1,277,460
Residential mortgage-backed securities | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Residential mortgage-backed securities | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	1,249,306	1,277,460
Residential mortgage-backed securities | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Commercial mortgage-backed securities
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	611,369	612,193
Commercial mortgage-backed securities | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	611,369	612,193
Commercial mortgage-backed securities | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Commercial mortgage-backed securities | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	611,369	612,193
Commercial mortgage-backed securities | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Asset-backed securities
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	47,906	75,611
Asset-backed securities | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	47,906	75,611
Asset-backed securities | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Asset-backed securities | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	47,906	75,611
Asset-backed securities | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Structured securities
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	181,908	220,126
Structured securities | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	181,908	220,126
Structured securities | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Structured securities | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	181,908	220,126
Structured securities | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Debt securities, available-for-sale	0	0
Short-term investments | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Short-term investments	70,761	67,353
Short-term investments | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Short-term investments	50,262	59,953
Short-term investments | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Short-term investments	20,499	7,400
Short-term investments | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Short-term investments	0	0
Other investments | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Other investments	7,661	9,365
Other investments | Level 1 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Other investments	3,829	4,881
Other investments | Level 2 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Other investments	0	0
Other investments | Level 3 | Recurring
Fair Value Assets Measured on Recurring and Nonrecurring Basis
Other investments	$ 3,832	$ 4,484

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Changes in Fair Value of Level 3 Financial Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance as of	$ 15,912	$ 22,956
Total gains (losses) included in net income	(375)	(405)
Total gains (losses) included in other comprehensive income	154	131
Sales	(277)
Balance as of	15,414	22,682
Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period	(375)	(405)
Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period	154
States and political subdivision bonds
Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance as of	3,100	3,596
Total gains (losses) included in net income	0	0
Total gains (losses) included in other comprehensive income	0	64
Sales	0
Balance as of	3,100	3,660
Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period	0	0
Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period	0
Corporate bonds
Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance as of	8,328	11,767
Total gains (losses) included in net income	0	0
Total gains (losses) included in other comprehensive income	154	67
Sales	0
Balance as of	8,482	11,834
Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period	0	0
Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period	154
Other investments
Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance as of	4,484	7,593
Total gains (losses) included in net income	(375)	(405)
Total gains (losses) included in other comprehensive income	0	0
Sales	(277)
Balance as of	3,832	7,188
Change in unrealized gains (losses) for the period included in net income for assets held at the end of the reporting period	(375)	$ (405)
Change in unrealized gains (losses) for the period included in other comprehensive income for assets held at the end of the reporting period	$ 0

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt	$ 685,078	$ 686,006
Senior Notes | 7.625% Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt	96,950	96,928
Senior Notes | 7.625% Notes | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value estimates of debt	83,880	103,560
Senior Notes | 6.75% Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt	347,252	347,091
Senior Notes | 6.75% Notes | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value estimates of debt	361,628	371,366
Surplus Notes | Subordinated Debentures
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt	72,168	72,168
Surplus Notes | Subordinated Debentures | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value estimates of debt	72,118	72,103
Line of Credit | 2019 Credit Agreement
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt	140,000	140,000
Line of Credit | 2019 Credit Agreement | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair value estimates of debt	$ 141,227	$ 148,272

Deferred Acquisition Costs (Det

Deferred Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Movement Analysis of Deferred Policy Acquisition Costs
Balance, beginning of the period	$ 263,523	$ 251,408
Additions	162,220	171,080
Amortization	(148,375)	(154,311)
Change in DAC	13,845	16,769
Balance, end of the period	277,368	268,177
Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	22,737	20,305
NGHC, excluding Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	254,631	247,872
Property and Casualty
Movement Analysis of Deferred Policy Acquisition Costs
Balance, beginning of the period	239,293	226,188
Additions	154,789	145,979
Amortization	(141,054)	(136,008)
Change in DAC	13,735	9,971
Balance, end of the period	253,028	236,159
Property and Casualty | Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	22,737	20,305
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	230,291	215,854
Accident and Health
Movement Analysis of Deferred Policy Acquisition Costs
Balance, beginning of the period	24,230	25,220
Additions	7,431	25,101
Amortization	(7,321)	(18,303)
Change in DAC	110	6,798
Balance, end of the period	24,340	32,018
Accident and Health | Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	0	0
Accident and Health | NGHC, excluding Reciprocal Exchanges
Movement Analysis of Deferred Policy Acquisition Costs
Balance, end of the period	$ 24,340	$ 32,018

Unpaid Losses and Loss Adjust_3

Unpaid Losses and Loss Adjustment Expense Reserves (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	$ 2,886,414	$ 2,957,159
Less: Reinsurance recoverable at beginning of the period	1,111,808	1,285,142
Net balance at beginning of the period	1,774,606	1,672,017
Current year	691,406	666,123
Prior year	592	(14,314)
Total incurred	691,998	651,809
Current year	(248,268)	(179,025)
Prior year	(471,387)	(497,348)
Total paid	(719,655)	(676,373)
Effect of foreign exchange rates		1,094
Net balance at end of the period	1,746,949	1,648,547
Plus: Reinsurance recoverable at end of the period	1,101,244	1,221,776
Gross balance at end of the period	2,848,193	2,870,323
Reciprocal Exchanges
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	205,786
Gross balance at end of the period	197,934
NGHC, excluding Reciprocal Exchanges
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	2,680,628	2,778,689
Less: Reinsurance recoverable at beginning of the period	1,027,634	1,207,163
Net balance at beginning of the period	1,652,994	1,571,526
Current year	649,968	626,150
Prior year	(337)	(16,366)
Total incurred	649,631	609,784
Current year	(230,099)	(164,076)
Prior year	(441,938)	(475,870)
Total paid	(672,037)	(639,946)
Effect of foreign exchange rates		1,094
Net balance at end of the period	1,630,588	1,542,458
Plus: Reinsurance recoverable at end of the period	1,019,671	1,131,843
Gross balance at end of the period	2,650,259	2,674,301
Property and Casualty
Liability for Claims and Claims Adjustment Expense
Prior year	5,400	(3,462)
Property and Casualty | Reciprocal Exchanges
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	205,786	178,470
Less: Reinsurance recoverable at beginning of the period	84,174	77,979
Net balance at beginning of the period	121,612	100,491
Current year	41,438	39,973
Prior year	929	2,052
Total incurred	42,367	42,025
Current year	(18,169)	(14,949)
Prior year	(29,449)	(21,478)
Total paid	(47,618)	(36,427)
Effect of foreign exchange rates		0
Net balance at end of the period	116,361	106,089
Plus: Reinsurance recoverable at end of the period	81,573	89,933
Gross balance at end of the period	197,934	196,022
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	2,528,754	2,507,409
Less: Reinsurance recoverable at beginning of the period	1,016,368	1,182,588
Net balance at beginning of the period	1,512,386	1,324,821
Current year	563,559	530,549
Prior year	4,471	(5,514)
Total incurred	568,030	525,035
Current year	(204,279)	(130,395)
Prior year	(397,862)	(422,560)
Total paid	(602,141)	(552,955)
Effect of foreign exchange rates		0
Net balance at end of the period	1,478,275	1,296,901
Plus: Reinsurance recoverable at end of the period	1,004,759	1,103,114
Gross balance at end of the period	2,483,034	2,400,015
Accident and Health | NGHC, excluding Reciprocal Exchanges
Liability for Claims and Claims Adjustment Expense
Gross balance at beginning of the period	151,874	271,280
Less: Reinsurance recoverable at beginning of the period	11,266	24,575
Net balance at beginning of the period	140,608	246,705
Current year	86,409	95,601
Prior year	(4,808)	(10,852)
Total incurred	81,601	84,749
Current year	(25,820)	(33,681)
Prior year	(44,076)	(53,310)
Total paid	(69,896)	(86,991)
Effect of foreign exchange rates		1,094
Net balance at end of the period	152,313	245,557
Plus: Reinsurance recoverable at end of the period	14,912	28,729
Gross balance at end of the period	$ 167,225	$ 274,286

Reinsurance - Effects of Reinsu

Reinsurance - Effects of Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Reinsurance Recoverables
Reinsurance recoverable on paid losses	$ 300,954		$ 282,500
Reinsurance recoverable on unpaid losses	1,101,244		1,111,808
Reinsurance recoverable, allowance for expected credit losses	517		0
Reinsurance recoverable, net	1,401,681		1,394,308
Reinsurance Liabilities
Unpaid Loss and LAE reserves, assumed	46,868		50,884
Unearned premiums, assumed	17,193		15,278
Prepaid reinsurance premiums	511,648		$ 575,747
Premiums:
Direct, Written	1,458,533	$ 1,489,188
Assumed, Written	18,021	20,590
Gross premium written	1,476,554	1,509,778
Ceded premiums	(266,951)	(345,114)
Net premium written	1,209,603	1,164,664
Direct, Earned	1,390,150	1,315,705
Assumed, Earned	16,106	21,000
Premiums Earned, Gross	1,406,256	1,336,705
Ceded, Earned	(331,050)	(372,548)
Net earned premium	1,075,206	964,157
Loss and LAE expense:
Assumed Loss and LAE	6,635	5,322
Ceded Loss and LAE	$ 196,486	$ 209,322

Reinsurance - Narrative (Detail

Reinsurance - Narrative (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Jul. 01, 2019	May 01, 2019	Jan. 01, 2019	Jul. 01, 2018	Jun. 30, 2020
Personal Auto
Reinsurance Retention Policy
Reinsurance - Percentage of Business Ceded	5.00%	10.00%		7.00%
Reinsurance percentage of ceding commission		31.20%
Homeowners
Reinsurance Retention Policy
Reinsurance - Percentage of Business Ceded		40.00%
Reinsurance percentage of ceding commission		36.00%
Property Catastrophe Program
Reinsurance Retention Policy
Amount of coverage in excess of retention			$ 650,000
Casualty Program
Reinsurance Retention Policy
Amount of coverage in excess of retention					$ 35,000
Retention amount					$ 5,000
Minimum | Personal Auto
Reinsurance Retention Policy
Reinsurance percentage of ceding commission		30.00%
Loss Ratio		64.70%
Maximum | Personal Auto
Reinsurance Retention Policy
Reinsurance percentage of ceding commission		32.80%
Loss Ratio		67.50%
Weighted Average | Homeowners
Reinsurance Retention Policy
Reinsurance percentage of ceding commission		37.50%
Reciprocal Exchanges | Homeowners
Reinsurance Retention Policy
Reinsurance - Percentage of Business Ceded		28.50%
Reciprocal Exchanges | Property Catastrophe Program
Reinsurance Retention Policy
Amount of coverage in excess of retention		$ 480,000
Retention amount		$ 20,000
Subsequent Event | Minimum | Personal Auto
Reinsurance Retention Policy
Reinsurance percentage of ceding commission						5.00%
Subsequent Event | Maximum | Personal Auto
Reinsurance Retention Policy
Reinsurance percentage of ceding commission						30.00%
First Event | Property Catastrophe Program
Reinsurance Retention Policy
Retention amount			70,000
Second Event | Property Catastrophe Program
Reinsurance Retention Policy
Retention amount			$ 50,000

Debt - Debt Instruments (Detail

Debt - Debt Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument
Notes Payable	$ 685,078	$ 686,006
Finance lease liabilities	20,946	20,477
Unamortized debt issuance costs and unamortized discount	$ (5,798)	(5,981)
Senior Notes | 6.75% Notes
Debt Instrument
Interest rate on debt	6.75%
Notes Payable	$ 350,000	350,000
Senior Notes | 7.625% Notes
Debt Instrument
Interest rate on debt	7.625%
Notes Payable	$ 100,000	100,000
Surplus Notes | Subordinated Debentures Tranche I
Debt Instrument
Basis Spread on Variable Rate	3.40%
Notes Payable	$ 41,238	$ 41,238
Interest rate on subordinated debentures	4.14%	5.29%
Surplus Notes | Subordinated Debentures Tranche I | LIBOR
Debt Instrument
LIBOR	LIBOR
Surplus Notes | Subordinated Debentures Tranche II
Debt Instrument
Basis Spread on Variable Rate	4.25%
Notes Payable	$ 30,930	$ 30,930
Interest rate on subordinated debentures	4.99%	6.14%
Surplus Notes | Subordinated Debentures Tranche II | LIBOR
Debt Instrument
LIBOR	LIBOR
Other | Other
Debt Instrument
Interest rate on debt	3.50%
Notes Payable	$ 7,762	$ 9,342
2019 Credit Agreement
Debt Instrument
Notes Payable	$ 140,000	$ 140,000
JPMorgan Chase, N.A. | 2019 Credit Agreement
Debt Instrument
Basis Spread on Variable Rate	1.75%
Interest rate on Credit Agreement	2.75%	3.59%
JPMorgan Chase, N.A. | 2019 Credit Agreement | LIBOR
Debt Instrument
LIBOR	LIBOR
Basis Spread on Variable Rate	1.00%

Debt - Interest Expense (Detail

Debt - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt Instrument
Interest Expense, Debt	$ 11,780	$ 12,999
Finance lease liabilities
Debt Instrument
Interest Expense, Debt	371	294
Other
Debt Instrument
Interest Expense, Debt	1,385	1,990
Senior Notes | 6.75% Notes
Debt Instrument
Interest Expense, Debt	5,906	5,906
Senior Notes | 7.625% Notes
Debt Instrument
Interest Expense, Debt	1,906	1,906
Surplus Notes | Subordinated Debentures
Debt Instrument
Interest Expense, Debt	997	1,163
Credit Agreement | JPMorgan Chase, N.A.
Debt Instrument
Interest Expense, Debt	0	1,211
2019 Credit Agreement | JPMorgan Chase, N.A.
Debt Instrument
Interest Expense, Debt	$ 1,215	$ 529

Debt - Senior Notes (Details)

Debt - Senior Notes (Details) - Senior Notes	Mar. 31, 2020
6.75% Notes
Debt Instrument
Interest rate on debt	6.75%
7.625% Notes
Debt Instrument
Interest rate on debt	7.625%

Debt - Subordinated Debentures

Debt - Subordinated Debentures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument
Notes Payable	$ 685,078	$ 686,006
Surplus Notes | Subordinated Debentures
Debt Instrument
Debt Instrument, Redemption Price, Percentage	100.00%
Surplus Notes | Subordinated Debentures Tranche I
Debt Instrument
Notes Payable	$ 41,238	41,238
Basis Spread on Variable Rate	3.40%
Surplus Notes | Subordinated Debentures Tranche II
Debt Instrument
Notes Payable	$ 30,930	$ 30,930
Basis Spread on Variable Rate	4.25%
LIBOR | Surplus Notes | Subordinated Debentures Tranche I
Debt Instrument
LIBOR	LIBOR
LIBOR | Surplus Notes | Subordinated Debentures Tranche II
Debt Instrument
LIBOR	LIBOR

Debt - Credit Agreement (Detail

Debt - Credit Agreement (Details) - 2019 Credit Agreement - JPMorgan Chase, N.A. $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Debt Instrument
Line of Credit Facility, Maximum Amount Outstanding During Period	$ 340,000
Basis Spread on Variable Rate	1.75%
Letter Of Credit Fronting Fee	0.125%
Line of Credit Facility, Leverage Ratio	0.225%
LIBOR
Debt Instrument
Federal funds	LIBOR
Basis Spread on Variable Rate	1.00%
Federal Funds Purchased
Debt Instrument
Federal funds	federal funds
Alternate Base Rate Or LIBOR
Debt Instrument
Basis Spread on Variable Rate	0.50%
Minimum
Debt Instrument
Line of Credit Facility, Current Borrowing Capacity	$ 150,000
Line of Credit Facility, Commitment Fee Percentage	0.175%
Maximum
Debt Instrument
Line of Credit Facility, Current Borrowing Capacity	$ 50,000
Line of Credit Facility, Commitment Fee Percentage	0.25%

Debt - Debt Maturities (Details

Debt - Debt Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument
2020 (remaining nine months)	$ 10,199
2021	8,607
2022	3,439
2023	142,144
2024	351,360
2025	735
Thereafter	174,392
Total principal amount of debt	690,876
Unamortized debt issuance costs and unamortized discount	(5,798)	$ (5,981)
Carrying amount of debt	685,078	686,006
Senior Notes | 6.75% Notes
Debt Instrument
2020 (remaining nine months)	0
2021	0
2022	0
2023	0
2024	350,000
2025	0
Thereafter	0
Total principal amount of debt	350,000
Carrying amount of debt	347,252	347,091
Senior Notes | 7.625% Notes
Debt Instrument
2020 (remaining nine months)	0
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	100,000
Total principal amount of debt	100,000
Carrying amount of debt	96,950	$ 96,928
Surplus Notes | Subordinated Debentures Tranche I
Debt Instrument
2020 (remaining nine months)	0
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	41,238
Total principal amount of debt	41,238
Surplus Notes | Subordinated Debentures Tranche II
Debt Instrument
2020 (remaining nine months)	0
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	30,930
Total principal amount of debt	30,930
Finance lease liabilities | Finance lease liabilities
Debt Instrument
2020 (remaining nine months)	5,380
2021	5,664
2022	3,439
2023	2,144
2024	1,360
2025	735
Thereafter	2,224
Total principal amount of debt	20,946
Other | Other
Debt Instrument
2020 (remaining nine months)	4,819
2021	2,943
2022	0
2023	0
2024	0
2025	0
Thereafter	0
Total principal amount of debt	7,762
JPMorgan Chase, N.A. | 2019 Credit Agreement
Debt Instrument
2020 (remaining nine months)	0
2021	0
2022	0
2023	140,000
2024	0
2025	0
Thereafter	0
Total principal amount of debt	$ 140,000

Debt - Covenants and Compliance

Debt - Covenants and Compliance (Details) - Senior Notes	Mar. 31, 2020
Indenture Excess Leverage Ratio | Minimum
Debt Instrument
Ratio of Indebtedness to Net Capital	0.35
Indenture Excess Leverage Ratio | Maximum
Debt Instrument
Ratio of Indebtedness to Net Capital	1
6.75% Notes
Debt Instrument
Interest rate on debt	6.75%
7.625% Notes
Debt Instrument
Interest rate on debt	7.625%

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Percent	21.90%	20.90%

Stockholders' Equity - Preferre

Stockholders' Equity - Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 16, 2023	Mar. 31, 2020	Jul. 15, 2023	Dec. 31, 2019
Class of Stock
Shares of preferred stock issued		2,565,120		2,565,120
Aggregate liquidation preference		$ 450,000		$ 450,000
Preferred stock | Preferred Stock Series A
Class of Stock
Dividend rate per year		7.50%
Shares of preferred stock issued		2,200,000
Depositary shares issued		0
Liquidation preference per share		$ 25
Aggregate liquidation preference		$ 55,000
Preferred stock | Preferred Stock Series B
Class of Stock
Dividend rate per year		7.50%
Shares of preferred stock issued		165,000
Depositary shares issued		6,600,000
Liquidation preference per share		$ 1,000
Aggregate liquidation preference		$ 165,000
Preferred stock | Preferred Stock Series C
Class of Stock
Dividend rate per year		7.50%
Shares of preferred stock issued		200,000
Depositary shares issued		8,000,000
Liquidation preference per share		$ 1,000
Aggregate liquidation preference		$ 200,000
Preferred stock | Preferred Stock Series D
Class of Stock
Shares of preferred stock issued		120
Depositary shares issued		0
Liquidation preference per share		$ 250,000
Aggregate liquidation preference		$ 30,000
Preferred stock | Subsequent Event | Preferred Stock Series D
Class of Stock
Dividend rate per year	5.4941%		7.00%
Dividend rate per year	six-month LIBOR

Stockholders' Equity - Dividend

Stockholders' Equity - Dividends Declared (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Common stock
Class of Stock
Declaration Date	Feb. 20, 2020	Feb. 25, 2019
Common Stock, Dividend Per Share	$ 0.05	$ 0.04
Preferred Stock Series A
Class of Stock
Declaration Date	Feb. 20, 2020	Feb. 25, 2019
Preferred Stock, Dividend Per Share	$ 0.46875	$ 0.46875
Preferred Stock Series B
Class of Stock
Declaration Date	Feb. 20, 2020	Feb. 25, 2019
Preferred Stock, Dividend Per Share	$ 18.75	$ 18.75
Preferred Stock, Dividend Per Depositary Share	$ 0.46875	$ 0.46875
Preferred Stock Series C
Class of Stock
Declaration Date	Feb. 20, 2020	Feb. 25, 2019
Preferred Stock, Dividend Per Share	$ 18.75	$ 18.75
Preferred Stock, Dividend Per Depositary Share	$ 0.46875	$ 0.46875

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures
Share Price	$ 16.55
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding
Outstanding at beginning of the period	3,025,587
Exercised	(120,738)
Outstanding at end of period	2,904,849
Exercisable at end of period	2,904,849
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Outstanding at beginning of the period	$ 9.83
Exercised	3.67
Outstanding at end of period	10.09
Exercisable at end of period	$ 10.09
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures
Weighted average remaining contractual term for option awards outstanding	3 years
Intrinsic value of the underlying stock exceeds the exercise price of options outstanding	$ 18,862
Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable	3 years
Intrinsic value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable	$ 18,862
Granted in period	0
Forfeitures in period	0
Expirations in period	0
Intrinsic value of stock options exercised	$ 2,126	$ 526
Fair value of stock options vested	$ 178	$ 37

Stock-Based Compensation - RSU

Stock-Based Compensation - RSU Activity (Details) - RSUs - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
RSUs
Non-vested at beginning of period	1,033,631
Granted	543,997
Vested	(381,676)
Non-vested at end of period	1,195,952
Weighted Average Grant Date Fair Value (in usd per share)
Non-vested at beginning of period	$ 23.98
Granted	21.52	$ 25.60
Vested	23.58
Non-vested at end of period	$ 22.99
RSUs Additional Disclosures
Fair value of RSU's vested	$ 9,002	$ 5,796

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Stock-compensation expense	$ 3,162	$ 2,622
Unrecognized compensation cost	$ 24,749
Future period share-based compensation expense period of recognition (in years)	1 year 7 months 6 days
Common stock
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized	2,500,000
Number of shares available for grant	1,900,000

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share, Diluted
Net income attributable to NGHC	$ 100,759	$ 91,758
Dividends on preferred stock	(7,875)	(7,875)
Numerator for basic EPS	92,884	83,883
Preferred stock dividends - convertible	0	0
Numerator for diluted EPS - after assumed conversions	$ 92,884	$ 83,883
Denominator for basic EPS - weighted-average shares outstanding	113,557,441	113,014,711
Convertible preferred stock	789,473	789,473
Dilutive potential common shares	2,517,903	3,060,515
Denominator for diluted EPS - weighted-average shares outstanding and assumed conversions	116,075,344	116,075,226
Earnings Per Share, Basic
Basic EPS	$ 0.82	$ 0.74
Earnings Per Share, Diluted
Diluted EPS	$ 0.80	$ 0.72
Employee stock options
Earnings Per Share, Diluted
Effect of dilutive securities	1,454,379	1,939,844
RSUs
Earnings Per Share, Diluted
Effect of dilutive securities	274,051	331,198
Preferred stock dividends - nonconvertible
Earnings Per Share, Diluted
Dividends on preferred stock	$ (7,875)	$ (7,875)
Preferred stock dividends - convertible
Earnings Per Share, Diluted
Dividends on preferred stock	$ 0	$ 0

Related Party Transactions - Cr

Related Party Transactions - Credit Agreement with ACP Re (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Party Transaction
Other investments	$ 287,683		$ 311,287
ACP Re
Related Party Transaction
Notes Receivable, Related Parties	125,000
Related Parties
Related Party Transaction
Other investments	235,843		238,841
Related Parties | ACP Re
Related Party Transaction
Notes Receivable, Related Parties	$ 250,000
Maintenance Covenant, minimum collateral interest as percent of value of outstanding loan balance	115.00%
Minimum percent of change in control included as events of default	50.00%
Related Parties | Loans
Related Party Transaction
Notes Receivable, Related Parties	$ 125,000
Related Parties | Loans | ACP Re
Related Party Transaction
Interest rate on debt	3.70%
Maximum percent of interest that may be paid in kind	1.20%
Other investments	$ 130,004		$ 129,229
Interest Income, Related Party	$ 1,203	$ 1,188

Related Party Transactions - Ot

Related Party Transactions - Other Related Party Transactions (Details) - Related Parties - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lease Agreement 59 Maiden Lane
Related Party Transaction
Expenses from transactions with related party	$ 207	$ 207
Lease Agreement 30 North LaSalle
Related Party Transaction
Expenses from transactions with related party	$ 108	$ 76

Segment Information - Results o

Segment Information - Results of Operations of the Business Segments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)segment	Mar. 31, 2019USD ($)
Segment Reporting [Abstract]
Number of business segments | segment	2
Segment Reporting Information
Gross premium written	$ 1,476,554	$ 1,509,778
Ceded premiums	(266,951)	(345,114)
Net premium written	1,209,603	1,164,664
Change in unearned premium	(134,397)	(200,507)
Net earned premium	1,075,206	964,157
Ceding commission income	50,305	69,534
Service and fee income	179,441	165,507
Total underwriting revenues	1,304,952	1,199,198
Loss and loss adjustment expense	691,998	651,809
Acquisition costs and other underwriting expenses	228,242	211,918
General and administrative expenses	267,569	248,094
Total underwriting expenses	1,187,809	1,111,821
Underwriting income	117,143	87,377
Net investment income	30,243	33,445
Net gain (loss) on Investments	(6,861)	22
Interest expense	(11,780)	(12,999)
Provision for income taxes	(28,172)	(22,506)
Net loss attributable to noncontrolling interest	186	6,419
Net income attributable to NGHC	100,759	91,758
Property and Casualty
Segment Reporting Information
Gross premium written	1,289,529	1,251,234
Ceded premiums	(248,142)	(286,751)
Net premium written	1,041,387	964,483
Change in unearned premium	(130,887)	(161,906)
Net earned premium	910,500	802,577
Ceding commission income	49,745	66,943
Service and fee income	98,917	104,495
Total underwriting revenues	1,059,162	974,015
Loss and loss adjustment expense	610,397	567,060
Acquisition costs and other underwriting expenses	159,771	154,070
General and administrative expenses	207,817	189,456
Total underwriting expenses	977,985	910,586
Underwriting income	81,177	63,429
Net investment income	0	0
Net gain (loss) on Investments	0	0
Interest expense	0	0
Provision for income taxes	0	0
Net loss attributable to noncontrolling interest	0	0
Net income attributable to NGHC	81,177	63,429
Accident and Health
Segment Reporting Information
Gross premium written	187,025	258,544
Ceded premiums	(18,809)	(58,363)
Net premium written	168,216	200,181
Change in unearned premium	(3,510)	(38,601)
Net earned premium	164,706	161,580
Ceding commission income	560	2,591
Service and fee income	80,524	61,012
Total underwriting revenues	245,790	225,183
Loss and loss adjustment expense	81,601	84,749
Acquisition costs and other underwriting expenses	68,471	57,848
General and administrative expenses	59,752	58,638
Total underwriting expenses	209,824	201,235
Underwriting income	35,966	23,948
Net investment income	0	0
Net gain (loss) on Investments	0	0
Interest expense	0	0
Provision for income taxes	0	0
Net loss attributable to noncontrolling interest	0	0
Net income attributable to NGHC	35,966	23,948
Corporate and Other
Segment Reporting Information
Gross premium written	0	0
Ceded premiums	0	0
Net premium written	0	0
Change in unearned premium	0	0
Net earned premium	0	0
Ceding commission income	0	0
Service and fee income	0	0
Total underwriting revenues	0	0
Loss and loss adjustment expense	0	0
Acquisition costs and other underwriting expenses	0	0
General and administrative expenses	0	0
Total underwriting expenses	0	0
Underwriting income	0	0
Net investment income	30,243	33,445
Net gain (loss) on Investments	(6,861)	22
Interest expense	(11,780)	(12,999)
Provision for income taxes	(28,172)	(22,506)
Net loss attributable to noncontrolling interest	186	6,419
Net income attributable to NGHC	$ (16,384)	$ 4,381

Segment Information - Long Live

Segment Information - Long Lived Assets and Total Assets of Business Segments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information
Premiums and other receivables, net	$ 1,541,760	$ 1,428,948
Deferred acquisition costs	277,368	263,523
Reinsurance recoverable, net	1,401,681	1,394,308
Prepaid reinsurance premiums	511,648	575,747
Goodwill and Intangible assets, net	536,896	545,151
Prepaid and other assets	86,359	94,642
Corporate and other assets	5,504,862	5,454,215
Total assets	9,860,574	9,756,534
Property and Casualty
Segment Reporting Information
Premiums and other receivables, net	1,373,437	1,292,813
Deferred acquisition costs	253,028	239,293
Reinsurance recoverable, net	1,380,374	1,377,284
Prepaid reinsurance premiums	511,613	575,712
Goodwill and Intangible assets, net	429,784	436,724
Prepaid and other assets	53,545	56,960
Corporate and other assets	0	0
Total assets	4,001,781	3,978,786
Accident and Health
Segment Reporting Information
Premiums and other receivables, net	167,928	131,877
Deferred acquisition costs	24,340	24,230
Reinsurance recoverable, net	21,307	17,024
Prepaid reinsurance premiums	35	35
Goodwill and Intangible assets, net	107,112	108,427
Prepaid and other assets	27,577	32,852
Corporate and other assets	0	0
Total assets	348,299	314,445
Corporate and Other
Segment Reporting Information
Premiums and other receivables, net	395	4,258
Deferred acquisition costs	0	0
Reinsurance recoverable, net	0	0
Prepaid reinsurance premiums	0	0
Goodwill and Intangible assets, net	0	0
Prepaid and other assets	5,237	4,830
Corporate and other assets	5,504,862	5,454,215
Total assets	$ 5,510,494	$ 5,463,303

Segment Information - Service a

Segment Information - Service and Fee Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from External Customer
Service and fee income	$ 179,441	$ 165,507
Reciprocal Exchanges
Revenue from External Customer
Service and fee income	1,157	1,370
NGHC, excluding Reciprocal Exchanges
Revenue from External Customer
Service and fee income	178,284	164,137
Property and Casualty
Revenue from External Customer
Service and fee income	98,917	104,495
Property and Casualty | Reciprocal Exchanges
Revenue from External Customer
Service and fee income	1,157	1,370
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Revenue from External Customer
Service and fee income	97,760	103,125
Accident and Health
Revenue from External Customer
Service and fee income	80,524	61,012
Accident and Health | Reciprocal Exchanges
Revenue from External Customer
Service and fee income	0	0
Accident and Health | NGHC, excluding Reciprocal Exchanges
Revenue from External Customer
Service and fee income	80,524	61,012
Commission revenue
Revenue from External Customer
Service and fee income	48,383	51,981
Commission revenue | Property and Casualty
Revenue from External Customer
Service and fee income	18,751	27,210
Commission revenue | Accident and Health
Revenue from External Customer
Service and fee income	29,632	24,771
Finance and processing fees
Revenue from External Customer
Service and fee income	38,260	34,460
Finance and processing fees | Property and Casualty
Revenue from External Customer
Service and fee income	35,789	32,436
Finance and processing fees | Accident and Health
Revenue from External Customer
Service and fee income	2,471	2,024
Group health administrative fees
Revenue from External Customer
Service and fee income	29,975	23,505
Group health administrative fees | Property and Casualty
Revenue from External Customer
Service and fee income	0	0
Group health administrative fees | Accident and Health
Revenue from External Customer
Service and fee income	29,975	23,505
Installment fees
Revenue from External Customer
Service and fee income	25,088	24,170
Installment fees | Property and Casualty
Revenue from External Customer
Service and fee income	25,088	24,170
Installment fees | Accident and Health
Revenue from External Customer
Service and fee income	0	0
Late payment fees
Revenue from External Customer
Service and fee income	7,845	8,380
Late payment fees | Property and Casualty
Revenue from External Customer
Service and fee income	7,833	8,293
Late payment fees | Accident and Health
Revenue from External Customer
Service and fee income	12	87
Other service and fee income
Revenue from External Customer
Service and fee income	29,890	23,011
Other service and fee income | Property and Casualty
Revenue from External Customer
Service and fee income	11,456	12,386
Other service and fee income | Accident and Health
Revenue from External Customer
Service and fee income	$ 18,434	$ 10,625

Segment Information - Gross Pre

Segment Information - Gross Premium Written (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Gross premium written	$ 1,476,554	$ 1,509,778
NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	1,384,701	1,404,209
Property and Casualty
Segment Reporting Information
Gross premium written	1,289,529	1,251,234
Property and Casualty | Reciprocal Exchanges
Segment Reporting Information
Gross premium written	91,853	105,569
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	1,197,676	1,145,665
Property and Casualty | Personal Auto | Reciprocal Exchanges
Segment Reporting Information
Gross premium written	31,809	36,862
Property and Casualty | Personal Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	794,497	766,681
Property and Casualty | Homeowners | Reciprocal Exchanges
Segment Reporting Information
Gross premium written	59,236	67,800
Property and Casualty | Homeowners | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	165,253	152,042
Property and Casualty | RV/Packaged | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	53,128	51,851
Property and Casualty | Small Business Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	72,752	85,878
Property and Casualty | Lender-placed insurance | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	95,444	75,938
Property and Casualty | Other | Reciprocal Exchanges
Segment Reporting Information
Gross premium written	808	907
Property and Casualty | Other | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	16,602	13,275
Accident and Health
Segment Reporting Information
Gross premium written	187,025	258,544
Accident and Health | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	187,025	258,544
Accident and Health | Group | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	87,538	64,938
Accident and Health | Individual | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	99,487	84,192
Accident and Health | International | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Gross premium written	$ 0	$ 109,414

Segment Information - Net Premi

Segment Information - Net Premium Written (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Net premium written	$ 1,209,603	$ 1,164,664
NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	1,154,308	1,115,709
Property and Casualty
Segment Reporting Information
Net premium written	1,041,387	964,483
Property and Casualty | Reciprocal Exchanges
Segment Reporting Information
Net premium written	55,295	48,955
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	986,092	915,528
Property and Casualty | Personal Auto | Reciprocal Exchanges
Segment Reporting Information
Net premium written	29,074	15,645
Property and Casualty | Personal Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	702,307	658,920
Property and Casualty | Homeowners | Reciprocal Exchanges
Segment Reporting Information
Net premium written	25,925	33,016
Property and Casualty | Homeowners | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	88,543	85,245
Property and Casualty | RV/Packaged | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	51,978	51,597
Property and Casualty | Small Business Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	58,599	74,186
Property and Casualty | Lender-placed insurance | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	77,469	42,070
Property and Casualty | Other | Reciprocal Exchanges
Segment Reporting Information
Net premium written	296	294
Property and Casualty | Other | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	7,196	3,510
Accident and Health
Segment Reporting Information
Net premium written	168,216	200,181
Accident and Health | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	168,216	200,181
Accident and Health | Group | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	69,471	53,950
Accident and Health | Individual | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	98,745	84,123
Accident and Health | International | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net premium written	$ 0	$ 62,108

Segment Information - Net Earne

Segment Information - Net Earned Premium (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Net earned premium	$ 1,075,206	$ 964,157
NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	1,017,608	918,499
Property and Casualty
Segment Reporting Information
Net earned premium	910,500	802,577
Property and Casualty | Reciprocal Exchanges
Segment Reporting Information
Net earned premium	57,598	45,658
Property and Casualty | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	852,902	756,919
Property and Casualty | Personal Auto | Reciprocal Exchanges
Segment Reporting Information
Net earned premium	32,923	15,861
Property and Casualty | Personal Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	579,502	510,554
Property and Casualty | Homeowners | Reciprocal Exchanges
Segment Reporting Information
Net earned premium	24,333	29,491
Property and Casualty | Homeowners | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	91,483	84,058
Property and Casualty | RV/Packaged | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	49,292	50,305
Property and Casualty | Small Business Auto | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	59,425	67,633
Property and Casualty | Lender-placed insurance | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	69,667	41,718
Property and Casualty | Other | Reciprocal Exchanges
Segment Reporting Information
Net earned premium	342	306
Property and Casualty | Other | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	3,533	2,651
Accident and Health
Segment Reporting Information
Net earned premium	164,706	161,580
Accident and Health | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	164,706	161,580
Accident and Health | Group | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	69,470	53,963
Accident and Health | Individual | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	95,236	82,235
Accident and Health | International | NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Net earned premium	$ 0	$ 25,382

Segment Information - Fee Incom

Segment Information - Fee Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information
Service and fee income	$ 179,441	$ 165,507
Ceding commission income	50,305	69,534
Fee Income	229,746	235,041
Property and Casualty
Segment Reporting Information
Service and fee income	98,917	104,495
Ceding commission income	49,745	66,943
Property and Casualty | Reciprocal Exchanges
Segment Reporting Information
Service and fee income	1,157	1,370
Ceding commission income	13,714	18,534
Fee Income	14,871	19,904
Accident and Health
Segment Reporting Information
Service and fee income	80,524	61,012
Ceding commission income	560	2,591
NGHC, excluding Reciprocal Exchanges
Segment Reporting Information
Fee Income	214,875	215,137
NGHC, excluding Reciprocal Exchanges | Property and Casualty
Segment Reporting Information
Service and fee income	97,760	103,125
Ceding commission income	36,031	48,409
Fee Income	133,791	151,534
NGHC, excluding Reciprocal Exchanges | Accident and Health
Segment Reporting Information
Service and fee income	80,524	61,012
Ceding commission income	560	2,591
Fee Income	81,084	63,603
Group | NGHC, excluding Reciprocal Exchanges | Accident and Health
Segment Reporting Information
Service and fee income	40,482	30,374
Individual | NGHC, excluding Reciprocal Exchanges | Accident and Health
Segment Reporting Information
Service and fee income	2,217	2,136
Third-Party Fee | NGHC, excluding Reciprocal Exchanges | Accident and Health
Segment Reporting Information
Service and fee income	$ 37,825	$ 28,502

Subsequent Event (Details)

Subsequent Event (Details) - Subsequent Event - USD ($) $ in Thousands	Apr. 23, 2020	Apr. 29, 2020
Common stock
Subsequent Event
Stock repurchase program, authorized amount		$ 50,000
Personal Auto Insurance
Subsequent Event
Percentage policy credit	15.00%