First American Financial (FAF) 10-Q 26 Apr 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 20, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	FAF
Entity Registrant Name	First American Financial Corp
Entity Central Index Key	1,472,787
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		111,544,750

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 1,176,618	$ 1,387,226
Accounts and accrued income receivable, net	304,158	311,084
Income taxes receivable	40,342	38,673
Investments:
Deposits with banks	39,215	41,335
Debt securities, includes pledged securities of $112,343 and $108,427	4,934,110	4,752,684
Equity securities	459,477	466,516
Other investments	116,234	117,768
Investments, Total	5,549,036	5,378,303
Property and equipment, net	435,867	439,569
Title plants and other indexes	570,546	568,452
Deferred income taxes	22,803	22,803
Goodwill	1,133,556	1,113,005
Other intangible assets, net	95,848	99,913
Other assets	218,015	214,194
Total assets	9,546,789	9,573,222
Liabilities and Equity
Deposits	3,161,706	3,070,566
Accounts payable and accrued liabilities	709,565	793,157
Deferred revenue	226,347	240,822
Reserve for known and incurred but not reported claims	1,021,346	1,028,933
Income taxes payable	4,623	4,602
Deferred income taxes	219,307	219,307
Notes and contracts payable	731,454	732,810
Total liabilities	6,074,348	6,090,197
Commitments and contingencies (Note 14)	0	0
Stockholders’ equity:
Preferred stock, $0.00001 par value; Authorized—500 shares; Outstanding—none	0	0
Common stock, $0.00001 par value; Authorized—300,000 shares; Outstanding—111,545 shares and 110,925 shares	1	1
Additional paid-in capital	2,244,290	2,236,351
Retained earnings	1,384,712	1,311,112
Accumulated other comprehensive loss	(158,468)	(67,509)
Total stockholders’ equity	3,470,535	3,479,955
Noncontrolling interests	1,906	3,070
Total equity	3,472,441	3,483,025
Total liabilities and equity	$ 9,546,789	$ 9,573,222

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Pledged securities included in debt securities	$ 112,343	$ 108,427
Preferred stock, par value	$ 0.00001	$ 0.00001
Preferred stock, shares authorized	500,000	500,000
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.00001	$ 0.00001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares outstanding	111,545,000	110,925,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Direct premiums and escrow fees	$ 543,878	$ 527,009
Agent premiums	527,714	574,582
Information and other	188,658	182,509
Net investment income	42,792	33,040
Net realized investment losses	(5,654)	(97)
Total revenues	1,297,388	1,317,043
Expenses
Personnel costs	413,642	407,137
Premiums retained by agents	416,637	453,926
Other operating expenses	218,480	215,402
Provision for policy losses and other claims	100,580	102,388
Depreciation and amortization	29,747	30,147
Premium taxes	16,014	15,448
Interest	9,223	8,715
Total expenses	1,204,323	1,233,163
Income before income taxes	93,065	83,880
Income taxes	16,893	25,811
Net income	76,172	58,069
Less: Net loss attributable to noncontrolling interests	(55)	(213)
Net income attributable to the Company	$ 76,227	$ 58,282
Net income per share attributable to the Company’s stockholders (Note 9):
Basic	$ 0.68	$ 0.52
Diluted	0.67	0.52
Cash dividends declared per share	$ 0.38	$ 0.34
Weighted-average common shares outstanding (Note 9):
Basic	112,232	111,179
Diluted	113,035	111,822

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 76,172	$ 58,069
Other comprehensive income (loss), net of tax:
Unrealized (losses) gains on securities	(46,796)	25,451
Foreign currency translation adjustment	(3,752)	3,434
Pension benefit adjustment	120	3,533
Total other comprehensive (loss) income, net of tax	(50,428)	32,418
Comprehensive income	25,744	90,487
Less: Comprehensive loss attributable to noncontrolling interests	(74)	(206)
Comprehensive income attributable to the Company	$ 25,818	$ 90,693

Condensed Consolidated Stateme6

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss		Total stockholders' equity	Noncontrolling Interests
Balance value at Dec. 31, 2017	$ 3,483,025	$ 1	$ 2,236,351	$ 1,311,112	$ (67,509)		$ 3,479,955	$ 3,070
Balance shares at Dec. 31, 2017	110,925	110,925
Cumulative-effect adjustment (Note 1) | Accounting Standards Update 2016-01				40,550	(40,550)	[1]
Net income (loss) for three months ended March 31, 2018	$ 76,172			76,227			76,227	(55)
Dividends on common shares	(42,330)			(42,330)			(42,330)
Shares issued in connection with share-based compensation plans, value	(12,606)		(11,759)	(847)			(12,606)
Shares issued in connection with share-based compensation plans, shares		620
Share-based compensation	19,509		19,509				19,509
Net activity related to noncontrolling interests	(901)		189				189	(1,090)
Other comprehensive loss (Note 13)	(50,428)				(50,409)		(50,409)	(19)
Balance value at Mar. 31, 2018	$ 3,472,441	$ 1	$ 2,244,290	$ 1,384,712	$ (158,468)		$ 3,470,535	$ 1,906
Balance shares at Mar. 31, 2018	111,545	111,545
[1]	Upon adoption of new accounting guidance on January 1, 2018, the Company recognized a cumulative-effect adjustment to retained earnings for cumulative net unrealized gains related to its investments in equity securities. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance.

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 76,172	$ 58,069
Adjustments to reconcile net income to cash provided by operating activities:
Provision for policy losses and other claims	100,580	102,388
Depreciation and amortization	29,747	30,147
Amortization of premiums and accretion of discounts on debt securities, net	6,743	9,427
Net realized investment losses	5,654	97
Share-based compensation	19,509	17,032
Equity in earnings of affiliates, net	296	(1,644)
Dividends from equity method investments	805	3,612
Changes in assets and liabilities excluding effects of acquisitions and noncash transactions:
Claims paid, including assets acquired, net of recoveries	(104,614)	(114,014)
Net change in income tax accounts	12,320	64,170
Decrease in accounts and accrued income receivable	5,493	714
Decrease in accounts payable and accrued liabilities	(95,978)	(137,320)
Decrease in deferred revenue	(14,378)	(11,812)
Other, net	818	(14,806)
Cash provided by operating activities	43,167	6,060
Cash flows from investing activities:
Net cash effect of acquisitions/dispositions	(24,484)	250
Net decrease (increase) in deposits with banks	2,292	(164)
Purchases of debt and equity securities	(586,150)	(341,974)
Proceeds from sales of debt and equity securities	213,432	201,923
Proceeds from maturities of debt securities	126,920	145,316
Net change in other investments	640	840
Capital expenditures	(22,344)	(29,903)
Proceeds from sales of property and equipment	1,015	8
Cash used for investing activities	(288,679)	(23,704)
Cash flows from financing activities:
Net change in deposits	91,140	103,334
Repayment of debt	(1,422)	(1,323)
Net activity related to noncontrolling interests	(895)	(853)
Net payments in connection with share-based compensation plans	(12,606)	(5,947)
Cash dividends	(42,330)	(37,495)
Cash provided by financing activities	33,887	57,716
Effect of exchange rate changes on cash	1,017	1,257
Net (decrease) increase in cash and cash equivalents	(210,608)	41,329
Cash and cash equivalents—Beginning of period	1,387,226	1,006,138
Cash and cash equivalents—End of period	1,176,618	1,047,467
Supplemental information:
Interest	8,318	7,594
Premium taxes	28,877	28,739
Income taxes, less refunds of $18 and $42,575	$ 4,187	$ (38,364)

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Cash Flows [Abstract]
Income taxes, refunds	$ 18	$ 42,575

Basis of Condensed Consolidated

Basis of Condensed Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Condensed Consolidated Financial Statements	Note 1 – Basis of Condensed Consolidated Financial Statements Basis of Presentation The condensed consolidated financial information included in this report has been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and Article 10 of Securities and Exchange Commission (“SEC”) Regulation S-X. The principles for condensed interim financial information do not require the inclusion of all the information and footnotes required by GAAP for complete financial statements. Therefore, these financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. The condensed consolidated financial statements included herein are unaudited; however, in the opinion of management, they contain all normal recurring adjustments necessary for a fair statement of the consolidated results for the interim periods. All material intercompany transactions and balances have been eliminated upon consolidation. Recently Adopted Accounting Pronouncements In May 2017, the Financial Accounting Standards Board (“FASB”) issued updated guidance intended to reduce diversity in practice by clarifying which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In March 2017, the FASB issued updated guidance intended to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost through the disaggregation of the service cost component from the other components of net benefit cost. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The Company adopted this change in accounting principle at the beginning of 2018 and applied the change retrospectively to the prior year. As a result, other components of net benefit cost totaling $8.0 million were reclassified from personnel costs to other operating expenses on the condensed consolidated statement of income for the three months ended March 31, 2017. See Note 10 Employee Benefit Plans for further information on the Company’s net periodic pension costs. In January 2017, the FASB issued updated guidance to clarify the definition of a business with the objective of providing guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued updated guidance intended to reduce the diversity in practice on presenting restricted cash and restricted cash equivalents in the statement of cash flows. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In October 2016, the FASB issued updated guidance intended to simplify and improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. The updated guidance, which eliminates the intra-entity transfers exception, requires entities to recognize the income tax consequences of intra-entity transfers of assets, other than inventory, when the transfers occur. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In August 2016, the FASB issued updated guidance intended to eliminate the diversity in practice regarding the presentation and classification of certain cash receipts and cash payments in the statement of cash flows. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In January 2016, the FASB issued updated guidance intended to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. In addition to making other targeted improvements to current guidance, the updated guidance also requires all equity investments, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in the fair value recognized through net income. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The Company adopted this guidance at the beginning of 2018 and recognized cumulative net unrealized gains, net of taxes, of $40.6 million related to its investments in equity securities, previously classified as available-for-sale, through a cumulative-effect adjustment to retained earnings. See Note 4 Debt and Equity Securities for further discussion of the Company’s investments in equity securities. In May 2014, the FASB issued updated guidance for recognizing revenue from contracts with customers to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability within and across industries, and across capital markets. The new revenue standard contains principles that an entity will apply to determine the measurement of revenue and the timing of recognition. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. Revenue from insurance contracts is not within the scope of this guidance. In August 2015, the FASB issued updated guidance which defers the effective date of this guidance by one year. In 2016, the FASB issued additional updates to the new guidance primarily to clarify, among other things, the implementation guidance related to principal versus agent considerations, identifying performance obligations, accounting for licenses of intellectual property, and to provide narrow-scope improvements and additional practical expedients. In February 2017, the FASB issued an additional update to the new guidance to clarify the scope of derecognition guidance for nonfinancial assets and to provide guidance for partial sales of nonfinancial assets. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The Company elected to adopt the new guidance under the modified retrospective approach, which, except for the disclosure requirements, did not have a material impact on its condensed consolidated financial statements. See Note 2 Adoption of Revenue Guidance for further information about the Company’s revenues within the scope of the new guidance. Pending Accounting Pronouncements In January 2017, the FASB issued updated guidance intended to simplify how an entity tests goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Under the updated guidance, an entity will perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, with the loss recognized limited to the total amount of goodwill allocated to that reporting unit. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. The Company does not expect the adoption of this guidance to have a material impact on its condensed consolidated financial statements. In June 2016, the FASB issued updated guidance intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The updated guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires the consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. The Company is currently assessing the impact of the new guidance on its condensed consolidated financial statements. In February 2016, the FASB issued updated guidance that requires the rights and obligations associated with leasing arrangements be reflected on the balance sheet in order to increase transparency and comparability among organizations. Under the updated guidance, lessees will be required to recognize a right-of-use asset and a liability to make lease payments and disclose key information about leasing arrangements. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted. While the Company is currently evaluating the impact the new guidance will have on its condensed consolidated financial statements, the Company expects the adoption of the new guidance will result in a material increase in the assets and liabilities on its condensed consolidated balance sheets and will likely have an insignificant impact on its condensed consolidated statements of income and statements of cash flows.

Adoption of Revenue Guidance

Adoption of Revenue Guidance	3 Months Ended
	Mar. 31, 2018
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Adoption of Revenue Guidance	Note 2 – Adoption of Revenue Guidance The Company’s information and other revenues and escrow fees are within the scope of the new accounting guidance related to the recognition of revenue from contracts with customers, which the Company adopted effective January 1, 2018. Under the new guidance, revenue is recognized when control of the promised goods or services is transferred to the customer and in an amount that reflects the consideration the Company expects to be entitled to in exchange for theses goods or services. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance. For those products and services where the Company’s performance obligation is satisfied at a point in time and for which there is no ongoing obligation, revenue is recognized upon delivery. For those products and services where the Company satisfies its performance obligation over time as the product or service is being transferred to the customer, revenue is generally recognized using the output method as the products or services are delivered. The Company has elected to apply the optional exemptions allowed under the new guidance whereby the Company is not required to disclose either the transaction price allocated to performance obligations that are unsatisfied as of the end of the period or an explanation as to when the Company expects to recognize the related revenue. Such contracts generally include performance obligations that are contingent upon the closing of a real estate transaction or include variable consideration based on order volumes, and have remaining contract terms of generally less than three years. The Company is eligible to apply the optional exemptions to its remaining performance obligations due to 1) the performance obligation is part of a contract that has an original duration of one year or less, 2) the associated revenue being recognized is based on the Company’s right to invoice for the value of the product or service delivered, 3) the associated variable consideration is being allocated entirely to wholly unsatisfied performance obligations or 4) immateriality. The Company has also elected to apply the practical expedient allowed under the new guidance whereby it can disregard the impact to the transaction price of the effects of a significant financing component for arrangements where the Company expects the period between delivery of the product or service and customer payment to be one year or less. In addition, the Company has elected to apply the practical expedient whereby it can recognize the incremental costs of obtaining a contract as an expense when incurred if the amortization period for the asset that the Company otherwise would have recognized is one year or less. The Company records a contract asset, and recognizes revenue, upon delivery of certain products related to the closing of a real property transaction where the Company’s right to payment is subject to the closing of the real estate transaction. The Company records a contract liability for payments received in advance of revenue recognition for certain products or services. Contract assets and liabilities were not material at March 31, 2018. Revenues recognized during the three months ended March 31, 2018 that were included in contract liabilities at the beginning of the period were not material. For information about the Company’s revenues disaggregated by reportable segment see Note 15 Segment Information.

Escrow Deposits, Like-Kind Exch

Escrow Deposits, Like-Kind Exchange Deposits and Trust Assets	3 Months Ended
	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Escrow Deposits, Like-Kind Exchange Deposits and Trust Assets	Note 3 – Escrow Deposits, Like-kind Exchange Deposits and Trust Assets The Company administers escrow deposits and trust assets as a service to its customers. Escrow deposits totaled $7.7 billion and $7.5 billion at March 31, 2018 and December 31, 2017, respectively, of which $3.0 billion and $2.9 billion, respectively, were held at the Company’s federal savings bank subsidiary, First American Trust, FSB. The escrow deposits held at First American Trust, FSB are temporarily invested in cash and cash equivalents and debt securities, with offsetting liabilities included in deposits in the accompanying condensed consolidated balance sheets. The remaining escrow deposits were held at third-party financial institutions. Trust assets held or managed by First American Trust, FSB totaled $3.8 billion and $3.7 billion at March 31, 2018 and December 31, 2017, respectively. Escrow deposits held at third-party financial institutions and trust assets are not considered assets of the Company and, therefore, are not included in the accompanying condensed consolidated balance sheets. However, the Company could be held contingently liable for the disposition of these assets. In conducting its operations, the Company often holds customers’ assets in escrow, pending completion of real estate transactions and, as a result, the Company has ongoing programs for realizing economic benefits with various financial institutions. The results from these programs are included in the condensed consolidated financial statements as income or a reduction in expense, as appropriate, based on the nature of the arrangement and benefit received. The Company facilitates tax-deferred property exchanges for customers pursuant to Section 1031 of the Internal Revenue Code and tax-deferred reverse exchanges pursuant to Revenue Procedure 2000-37. As a facilitator and intermediary, the Company holds the proceeds from sales transactions and takes temporary title to property identified by the customer to be acquired with such proceeds. Upon the completion of each such exchange, the identified property is transferred to the customer or, if the exchange does not take place, an amount equal to the sales proceeds or, in the case of a reverse exchange, title to the property held by the Company is transferred to the customer. Like-kind exchange funds held by the Company totaled $2.5 billion and $2.6 billion at March 31, 2018 and December 31, 2017, respectively. The like-kind exchange deposits are held at third-party financial institutions and, due to the structure utilized to facilitate these transactions, the proceeds and property are not considered assets of the Company and, therefore, are not included in the accompanying condensed consolidated balance sheets. All such amounts are placed in deposit accounts insured, up to applicable limits, by the Federal Deposit Insurance Corporation. The Company could be held contingently liable to the customer for the transfers of property, disbursements of proceeds and the returns on such proceeds.

Debt and Equity Securities

Debt and Equity Securities	3 Months Ended
	Mar. 31, 2018
Investments Debt And Equity Securities [Abstract]
Debt and Equity Securities	Note 4 – Debt and Equity Securities Investments in debt securities, classified as available-for-sale, are as follows: (in thousands) Amortized Gross unrealized Estimated Gains Losses March 31, 2018 U.S. Treasury bonds $ 189,322 $ 602 $ (3,146 ) $ 186,778 Municipal bonds 1,104,512 6,013 (18,648 ) 1,091,877 Foreign government bonds 155,001 176 (2,151 ) 153,026 Governmental agency bonds 223,473 680 (4,471 ) 219,682 Governmental agency mortgage-backed securities 2,325,348 2,692 (33,744 ) 2,294,296 U.S. corporate debt securities 731,649 4,721 (10,054 ) 726,316 Foreign corporate debt securities 263,396 1,631 (2,892 ) 262,135 $ 4,992,701 $ 16,515 $ (75,106 ) $ 4,934,110 December 31, 2017 U.S. Treasury bonds $ 173,049 $ 2,199 $ (1,250 ) $ 173,998 Municipal bonds 1,031,146 12,185 (7,394 ) 1,035,937 Foreign government bonds 170,220 489 (1,221 ) 169,488 Governmental agency bonds 212,731 1,061 (2,322 ) 211,470 Governmental agency mortgage-backed securities 2,172,377 3,168 (16,588 ) 2,158,957 U.S. corporate debt securities 734,409 11,768 (2,962 ) 743,215 Foreign corporate debt securities 256,430 4,145 (956 ) 259,619 $ 4,750,362 $ 35,015 $ (32,693 ) $ 4,752,684 Sales of debt securities resulted in realized gains of $0.7 million and $1.6 million, realized losses of $1.2 million and $3.2 million, and proceeds of $155.7 million and $154.4 million for the three months ended March 31, 2018 and 2017, respectively. Gross unrealized losses on investments in debt securities are as follows: Less than 12 months 12 months or longer Total (in thousands) Estimated Unrealized Estimated Unrealized Estimated Unrealized March 31, 2018 U.S. Treasury bonds $ 109,820 $ (2,009 ) $ 38,554 $ (1,137 ) $ 148,374 $ (3,146 ) Municipal bonds 503,940 (6,441 ) 217,817 (12,207 ) 721,757 (18,648 ) Foreign government bonds 93,606 (1,397 ) 13,963 (754 ) 107,569 (2,151 ) Governmental agency bonds 97,136 (1,542 ) 93,289 (2,929 ) 190,425 (4,471 ) Governmental agency mortgage-backed securities 976,932 (15,420 ) 766,336 (18,324 ) 1,743,268 (33,744 ) U.S. corporate debt securities 383,413 (7,256 ) 56,030 (2,798 ) 439,443 (10,054 ) Foreign corporate debt securities 154,534 (2,604 ) 5,959 (288 ) 160,493 (2,892 ) $ 2,319,381 $ (36,669 ) $ 1,191,948 $ (38,437 ) $ 3,511,329 $ (75,106 ) December 31, 2017 U.S. Treasury bonds $ 78,605 $ (511 ) $ 37,498 $ (739 ) $ 116,103 $ (1,250 ) Municipal bonds 279,292 (1,714 ) 226,895 (5,680 ) 506,187 (7,394 ) Foreign government bonds 98,942 (972 ) 6,678 (249 ) 105,620 (1,221 ) Governmental agency bonds 55,707 (409 ) 93,737 (1,913 ) 149,444 (2,322 ) Governmental agency mortgage-backed securities 671,871 (4,868 ) 774,959 (11,720 ) 1,446,830 (16,588 ) U.S. corporate debt securities 171,817 (1,568 ) 60,724 (1,394 ) 232,541 (2,962 ) Foreign corporate debt securities 81,525 (821 ) 5,697 (135 ) 87,222 (956 ) $ 1,437,759 $ (10,863 ) $ 1,206,188 $ (21,830 ) $ 2,643,947 $ (32,693 ) Based on the Company’s review of its debt securities in an unrealized loss position at March 31, 2018, it determined that the losses were primarily the result of changes in interest rates, which were considered to be temporary, rather than a deterioration in credit quality. The Company does not intend to sell and it is not more likely than not that the Company will be required to sell these securities prior to recovering their amortized cost. As such, the Company does not consider these securities to be other-than-temporarily impaired at March 31, 2018. Investments in debt securities at March 31, 2018, by contractual maturities, are as follows: (in thousands) Due in one Due after Due after Due after Total U.S. Treasury bonds Amortized cost $ 37,530 $ 55,856 $ 44,730 $ 51,206 $ 189,322 Estimated fair value $ 37,388 $ 54,931 $ 43,790 $ 50,669 $ 186,778 Municipal bonds Amortized cost $ 70,776 $ 293,994 $ 272,117 $ 467,625 $ 1,104,512 Estimated fair value $ 70,767 $ 293,665 $ 269,827 $ 457,618 $ 1,091,877 Foreign government bonds Amortized cost $ 13,139 $ 113,211 $ 12,517 $ 16,134 $ 155,001 Estimated fair value $ 13,143 $ 112,212 $ 12,430 $ 15,241 $ 153,026 Governmental agency bonds Amortized cost $ 31,347 $ 78,487 $ 65,136 $ 48,503 $ 223,473 Estimated fair value $ 31,210 $ 76,941 $ 64,331 $ 47,200 $ 219,682 U.S. corporate debt securities Amortized cost $ 21,390 $ 321,444 $ 315,735 $ 73,080 $ 731,649 Estimated fair value $ 21,431 $ 318,706 $ 312,509 $ 73,670 $ 726,316 Foreign corporate debt securities Amortized cost $ 18,674 $ 137,519 $ 94,093 $ 13,110 $ 263,396 Estimated fair value $ 18,701 $ 136,902 $ 93,212 $ 13,320 $ 262,135 Total debt securities excluding mortgage-backed securities Amortized cost $ 192,856 $ 1,000,511 $ 804,328 $ 669,658 $ 2,667,353 Estimated fair value $ 192,640 $ 993,357 $ 796,099 $ 657,718 $ 2,639,814 Total mortgage-backed securities Amortized cost $ 2,325,348 Estimated fair value $ 2,294,296 Total debt securities Amortized cost $ 4,992,701 Estimated fair value $ 4,934,110 Mortgage-backed securities, which include contractual terms to maturity, are not categorized by contractual maturity as borrowers may have the right to call or prepay obligations with, or without, call or prepayment penalties. Investments in equity securities are as follows: Cost Estimated (in thousands) March 31, 2018 Preferred stocks $ 18,692 $ 18,238 Common stocks 405,633 441,239 $ 424,325 $ 459,477 December 31, 2017 Preferred stocks $ 19,233 $ 18,990 Common stocks 394,439 447,526 $ 413,672 $ 466,516 The Company adopted new accounting guidance on January 1, 2018, which requires investments in equity securities with readily determinable fair values to be measured at fair value with changes in fair value recognized through net income. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance. Gains of $1.1 million and losses of $7.0 million resulting from changes in the fair values of equity securities were recognized for the three months ended March 31, 2018, of which, $46 thousand of unrealized gains and $7.0 million of unrealized losses were related to equity securities still held at March 31, 2018. For the three months ended March 31, 2017, sales of equity securities resulted in realized gains of $1.8 million and realized losses of $0.1 million. The composition of the investment portfolio at March 31, 2018, by credit rating, is as follows: A- or higher BBB+ to BBB- Non-Investment Grade Total (in thousands, except percentages) Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage March 31, 2018 Debt securities: U.S. Treasury bonds $ 186,778 100.0 $ — — $ — — $ 186,778 100.0 Municipal bonds 1,012,141 92.7 59,627 5.5 20,109 1.8 1,091,877 100.0 Foreign government bonds 123,117 80.5 24,484 16.0 5,425 3.5 153,026 100.0 Governmental agency bonds 219,682 100.0 — — — — 219,682 100.0 Governmental agency mortgage-backed securities 2,294,296 100.0 — — — — 2,294,296 100.0 U.S. corporate debt securities 259,578 35.7 239,276 32.9 227,462 31.4 726,316 100.0 Foreign corporate debt securities 122,163 46.6 108,273 41.3 31,699 12.1 262,135 100.0 Total debt securities 4,217,755 85.5 431,660 8.7 284,695 5.8 4,934,110 100.0 Preferred stocks — — 13,369 73.3 4,869 26.7 18,238 100.0 Total $ 4,217,755 85.2 $ 445,029 9.0 $ 289,564 5.8 $ 4,952,348 100.0 As of March 31, 2018, the estimated fair value of total debt securities included $164.7 million of bank loans, of which $152.8 million was non-investment grade; $101.2 million of high yield corporate debt securities, all of which was non-investment grade; and $83.8 million of emerging market debt securities, of which $10.6 million was non-investment grade. The composition of the debt securities portfolio in an unrealized loss position at March 31, 2018, by credit rating, is as follows: A- or higher BBB+ to BBB- Non-Investment Grade Total (in thousands, except percentages) Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage March 31, 2018 U.S. Treasury bonds $ 148,374 100.0 $ — — $ — — $ 148,374 100.0 Municipal bonds 683,529 94.7 36,359 5.0 1,869 0.3 721,757 100.0 Foreign government bonds 80,575 74.9 23,833 22.2 3,161 2.9 107,569 100.0 Governmental agency bonds 190,425 100.0 — — — — 190,425 100.0 Governmental agency mortgage-backed securities 1,743,268 100.0 — — — — 1,743,268 100.0 U.S. corporate debt securities 195,799 44.6 172,175 39.2 71,469 16.2 439,443 100.0 Foreign corporate debt securities 74,495 46.4 69,761 43.5 16,237 10.1 160,493 100.0 Total $ 3,116,465 88.8 $ 302,128 8.6 $ 92,736 2.6 $ 3,511,329 100.0 As of March 31, 2018, the estimated fair value of total debt securities in an unrealized loss position included $26.6 million of bank loans, of which $26.3 million was non-investment grade; $58.1 million of high yield corporate debt securities, all of which was non-investment grade; and $57.2 million of emerging market debt securities, of which $6.5 million was non-investment grade. The credit ratings in the above tables reflect published ratings obtained from globally recognized securities rating agencies. If a security was rated differently among the rating agencies, the lowest rating was selected. Governmental agency mortgage-backed securities are not rated by any of the ratings agencies; however, these securities have been included in the above table in the “A- or higher” category because the payments of principal and interest are guaranteed by the governmental agency that issued the security.

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	Note 5 – Goodwill A summary of the changes in the carrying amount of goodwill, by operating segment, for the three months ended March 31, 2018, is as follows: (in thousands) Title Specialty Total Balance as of December 31, 2017 $ 1,066,240 $ 46,765 $ 1,113,005 Acquisitions 21,614 — 21,614 Foreign currency translation (1,063 ) — (1,063 ) Balance as of March 31, 2018 $ 1,086,791 $ 46,765 $ 1,133,556 The Company’s four reporting units for purposes of assessing goodwill for impairment are title insurance, home warranty, property and casualty insurance and trust and other services. During the three months ended March 31, 2018, there were no triggering events that would more likely than not reduce the fair value of any reporting unit below its carrying amount.

Other Intangible Assets

Other Intangible Assets	3 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Other Intangible Assets	Note 6 – Other Intangible Assets Other intangible assets consist of the following: (in thousands) March 31, 2018 December 31, Finite-lived intangible assets: Customer relationships $ 97,300 $ 106,086 Noncompete agreements 11,139 11,509 Trademarks 9,203 9,229 Internal-use software licenses 22,534 28,956 Patents 2,840 2,840 143,016 158,620 Accumulated amortization (64,052 ) (75,591 ) 78,964 83,029 Indefinite-lived intangible assets: Licenses 16,884 16,884 $ 95,848 $ 99,913 Amortization expense for finite-lived intangible assets was $7.0 million and $6.2 million for the three months ended March 31, 2018 and 2017, respectively. Estimated amortization expense for finite-lived intangible assets for the next five years is as follows: Year (in thousands) Remainder of 2018 $ 16,144 2019 $ 15,401 2020 $ 10,638 2021 $ 7,680 2022 $ 7,031 2023 $ 5,864

Reserve for Known and Incurred

Reserve for Known and Incurred but Not Reported Claims	3 Months Ended
	Mar. 31, 2018
Insurance Loss Reserves [Abstract]
Reserve for Known and Incurred but Not Reported Claims	Note 7 – Reserve for Known and Incurred But Not Reported Claims Activity in the reserve for known and incurred but not reported claims is summarized as follows: Three months ended (in thousands) 2018 2017 Balance at beginning of period $ 1,028,933 $ 1,025,863 Provision related to: Current year 90,970 99,408 Prior years 9,610 2,980 100,580 102,388 Payments, net of recoveries, related to: Current year 32,285 30,610 Prior years 72,329 83,404 104,614 114,014 Other (3,553 ) (772 ) Balance at end of period $ 1,021,346 $ 1,013,465 The provision for title insurance losses, expressed as a percentage of title insurance premiums and escrow fees, was 4.0% for the three months ended March 31, 2018 and 2017. The current quarter rate of 4.0% reflects the ultimate loss rate for the current policy year and no change in the loss reserve estimates for prior policy years. The 4.0% rate for the first quarter of 2017 reflected the ultimate loss rate for the 2017 policy year and no change in the loss reserve estimates for prior policy years. A summary of the Company’s loss reserves is as follows: (in thousands, except percentages) March 31, 2018 December 31, 2017 Known title claims $ 88,298 8.7 % $ 83,094 8.1 % Incurred but not reported claims 870,421 85.2 % 875,724 85.1 % Total title claims 958,719 93.9 % 958,818 93.2 % Non-title claims 62,627 6.1 % 70,115 6.8 % Total loss reserves $ 1,021,346 100.0 % $ 1,028,933 100.0 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 8 – Income Taxes On December 22, 2017, comprehensive tax reform legislation known as the Tax Cuts and Jobs Act (the “Tax Reform Act”) was signed into law. The Tax Reform Act amended the Internal Revenue Code to reduce U.S. tax rates and modify policies, credits and deductions for individuals and businesses. Also, on December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118, which provided for a one-year measurement period that allows businesses time to evaluate the financial statement implications of the Tax Reform Act. The measurement period allows businesses to gather the information necessary to prepare and analyze the tax accounting effects of the Tax Reform Act on financial statements issued during the measurement period. The ultimate impact of the Tax Reform Act on the Company’s financial statements may differ, perhaps materially, from the amounts originally estimated due to further refinement of the Company’s calculations, changes in interpretations and assumptions the Company has made, guidance that may be issued by taxing authorities and regulatory bodies, and actions the Company may take as a result of the Tax Reform Act. The Company anticipates completing its tax accounting for the Tax Reform Act during the measurement period, and will record and disclose any adjustments made to its initial estimates during that time frame. The Company’s effective income tax rates (income tax expense as a percentage of income before income taxes) were 18.2% and 30.8% for the three months ended March 31, 2018 and 2017, respectively. The Company’s effective tax rates differ from the statutory federal rates of 21% and 35% for 2018 and 2017, respectively, primarily due to changes in state and foreign income taxes resulting from fluctuations in the Company’s noninsurance and foreign subsidiaries’ contributions to pretax income, changes in the ratio of permanent differences to income before income taxes and the recognition of excess tax benefits or tax deficiencies associated with share-based payment transactions through income tax expense. In connection with the Company’s June 2010 spin-off from its prior parent, the Company entered into a tax sharing agreement which governs the Company’s and its prior parent’s respective rights, responsibilities and obligations for certain tax related matters. At March 31, 2018 and December 31, 2017, the Company had a net payable to its prior parent of $15.2 million and $15.0 million, respectively, related to tax matters prior to the spin-off. This amount is included in the Company’s condensed consolidated balance sheets in accounts payable and accrued liabilities. The increase during the current year was primarily the result of an additional accrual for tax matters prior to the spin-off. The Company evaluates the realizability of its deferred tax assets by assessing the valuation allowance and makes adjustments to the allowance as necessary. The factors used to assess the likelihood of realization include the Company’s forecast of future taxable income and available tax planning strategies that could be implemented to realize the deferred tax assets. The Company’s ability or failure to achieve forecasted taxable income in the applicable taxing jurisdictions could affect the ultimate realization of deferred tax assets. Based on actual future operating results in certain jurisdictions, it is possible that the current valuation allowance positions of those jurisdictions could be adjusted in the next 12 months. As of March 31, 2018 and December 31, 2017, the liability for income taxes associated with uncertain tax positions was $12.8 million. As of March 31, 2018 and December 31, 2017, the liability could be reduced by $3.7 million due to offsetting tax benefits associated with the correlative effects of potential adjustments, including timing adjustments and state income taxes. The net amount of $9.1 million as of March 31, 2018 and December 31, 2017, if recognized, would favorably affect the Company’s effective tax rate. The Company’s continuing practice is to recognize interest and penalties, if any, related to uncertain tax positions in income tax expense. As of March 31, 2018 and December 31, 2017, the Company had accrued $5.4 million and $5.3 million, respectively, of interest and penalties (net of tax benefits of $1.4 million) related to uncertain tax positions. It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions may significantly increase or decrease within the next 12 months. Any such change may be the result of ongoing audits or the expiration of federal and state statutes of limitations for the assessment of taxes. The Company, or one of its subsidiaries, files income tax returns in the U.S. federal jurisdiction, various state jurisdictions and various non-U.S. jurisdictions. The primary non-federal jurisdictions are California, Canada, India and the United Kingdom. During 2016, the Company concluded U.S. federal income tax examinations for calendar years 2005 through 2013. The Company is generally no longer subject to U.S. federal, state and non-U.S. income tax examinations for years prior to 2005.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Note 9 – Earnings Per Share The computation of basic and diluted earnings per share is as follows: Three Months Ended (in thousands, except per share amounts) 2018 2017 Numerator Net income attributable to the Company $ 76,227 $ 58,282 Denominator Basic weighted-average shares 112,232 111,179 Effect of dilutive employee stock options and 803 643 Diluted weighted-average shares 113,035 111,822 Net income per share attributable to the Company’s stockholders Basic $ 0.68 $ 0.52 Diluted $ 0.67 $ 0.52 For the three months ended March 31, 2018, no RSUs had an antidilutive effect on weighted-average diluted common shares outstanding, and for the three months ended March 31, 2017, 131 thousand RSUs were excluded from the weighted-average diluted common shares outstanding due to their antidilutive effect. No stock options had an antidilutive effect on weighted-average diluted common shares outstanding for either period in the current year or in the prior year.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	Note 10 – Employee Benefit Plans Net periodic cost related to the Company’s defined benefit pension and supplemental benefit plans includes the following components: Three Months Ended (in thousands) 2018 2017 Expense: Service costs $ 130 $ 184 Interest costs 2,018 4,641 Expected return on plan assets — (2,370 ) Amortization of net actuarial loss 1,205 6,933 Amortization of prior service credit (1,045 ) (1,211 ) $ 2,308 $ 8,177 The Company adopted new accounting guidance which requires the components of net periodic cost, other than the service cost component, to be included in other operating expenses in the Company’s condensed consolidated statements of income. The change was applied retrospectively to the prior year, which resulted in a reclass of $8.0 million from personnel costs to other operating expenses. For further information about the new guidance see Note 1 Basis of Condensed Consolidated Financial Statements. Prior year net periodic cost includes costs related to the Company’s previously terminated defined benefit pension plans, for which the Company has no remaining obligation.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 11 – Fair Value Measurements Certain of the Company’s assets are carried at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company categorizes its assets and liabilities carried at fair value using a three-level hierarchy for fair value measurements that distinguishes between market participant assumptions developed based on market data obtained from sources independent of the Company (observable inputs) and the Company’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The hierarchy for inputs used in determining fair value maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. The hierarchy level assigned to the assets and liabilities is based on management’s assessment of the transparency and reliability of the inputs used to estimate the fair values at the measurement date. The three hierarchy levels are defined as follows: Level 1—Valuations based on unadjusted quoted market prices in active markets for identical assets or liabilities. Level 2—Valuations based on observable inputs (other than Level 1 prices), such as quoted prices for similar assets or liabilities at the measurement date; quoted prices in markets that are not active; or other inputs that are observable, either directly or indirectly. Level 3—Valuations based on inputs that are unobservable and significant to the overall fair value measurement, and involve management judgment. If the inputs used to measure fair value fall into different levels of the fair value hierarchy, the hierarchy level assigned is based upon the lowest level of input that is significant to the fair value measurement. Assets measured at fair value on a recurring basis The valuation techniques and inputs used by the Company to estimate the fair value of assets measured on a recurring basis are summarized as follows: Debt securities The fair values of debt securities were based on the market values obtained from independent pricing services that were evaluated using pricing models that vary by asset class and incorporate available trade, bid and other market information and price quotes from well-established, independent broker-dealers. The independent pricing services monitor market indicators, industry and economic events, and for broker-quoted only securities, obtain quotes from market makers or broker-dealers that they recognize to be market participants. The pricing services utilize the market approach in determining the fair value of the debt securities held by the Company. The Company obtains an understanding of the valuation models and assumptions utilized by the services and has controls in place to determine that the values provided represent fair values. The Company’s validation procedures include comparing prices received from the pricing services to quotes received from other third party sources for certain securities with market prices that are readily verifiable. If the price comparison results in differences over a predefined threshold, the Company will assess the reasonableness of the changes relative to prior periods given the prevailing market conditions and assess changes in the issuers’ credit worthiness, performance of any underlying collateral and prices of the instrument relative to similar issuances. To date, the Company has not made any material adjustments to the fair value measurements provided by the pricing services. Typical inputs and assumptions to pricing models used to value the Company’s U.S. Treasury bonds, municipal bonds, foreign government bonds, governmental agency bonds, governmental agency mortgage-backed securities and U.S. and foreign corporate debt securities include, but are not limited to, benchmark yields, reported trades, broker-dealer quotes, credit spreads, credit ratings, bond insurance (if applicable), benchmark securities, bids, offers, reference data and industry and economic events. For mortgage-backed securities, inputs and assumptions may also include the structure of issuance, characteristics of the issuer, collateral attributes and prepayment speeds. Certain of the Company’s corporate debt securities were not actively traded and there were fewer observable inputs available requiring the use of more judgment in determining their fair values, which resulted in their classification as Level 3. Equity securities The fair values of equity securities, including preferred and common stocks, were based on quoted market prices for identical assets that are readily and regularly available in an active market. The following tables present the fair values of the Company’s assets, measured on a recurring basis, as of March 31, 2018 and December 31, 2017: (in thousands) Total Level 1 Level 2 Level 3 March 31, 2018 Assets: Debt securities: U.S. Treasury bonds $ 186,778 $ — $ 186,778 $ — Municipal bonds 1,091,877 — 1,091,877 — Foreign government bonds 153,026 — 153,026 — Governmental agency bonds 219,682 — 219,682 — Governmental agency mortgage-backed securities 2,294,296 — 2,294,296 — U.S. corporate debt securities 726,316 — 710,198 16,118 Foreign corporate debt securities 262,135 — 260,623 1,512 4,934,110 — 4,916,480 17,630 Equity securities: Preferred stocks 18,238 18,238 — — Common stocks 441,239 441,239 — — 459,477 459,477 — — Total assets $ 5,393,587 $ 459,477 $ 4,916,480 $ 17,630 (in thousands) Total Level 1 Level 2 Level 3 December 31, 2017 Assets: Debt securities: U.S. Treasury bonds $ 173,998 $ — $ 173,998 $ — Municipal bonds 1,035,937 — 1,035,937 — Foreign government bonds 169,488 — 169,488 — Governmental agency bonds 211,470 — 211,470 — Governmental agency mortgage-backed securities 2,158,957 — 2,158,957 — U.S. corporate debt securities 743,215 — 700,347 42,868 Foreign corporate debt securities 259,619 — 257,953 1,666 4,752,684 — 4,708,150 44,534 Equity securities: Preferred stocks 18,990 18,990 — — Common stocks 447,526 447,526 — — 466,516 466,516 — — Total assets $ 5,219,200 $ 466,516 $ 4,708,150 $ 44,534 There were no transfers between Levels 1 and 2 during the three months ended March 31, 2018 and 2017. Transfers into or out of the Level 3 category occur when unobservable inputs become more or less significant to the fair value measurement. For the three months ended March 31, 2018 and 2017, transfers between Level 2 and Level 3 were based on market liquidity and the related transparency of pricing and associated observable inputs for certain of the Company’s corporate debt securities. The Company’s policy is to recognize transfers between levels in the fair value hierarchy at the end of the reporting period. The following table presents a summary of the changes in the fair values of Level 3 assets, measured on a recurring basis, for the three months ended March 31, 2018 and 2017: March 31, 2018 March 31, 2017 (in thousands) U.S. corporate debt securities Foreign corporate debt securities Total U.S. corporate debt securities Foreign corporate debt securities Total Fair value at beginning of period $ 42,868 $ 1,666 $ 44,534 $ 46,665 $ 6,268 $ 52,933 Transfers into Level 3 1,580 — 1,580 1,715 224 1,939 Transfers out of Level 3 (28,523 ) (916 ) (29,439 ) (33,174 ) (3,485 ) (36,659 ) Net realized and unrealized gains (losses): Included in earnings 38 2 40 29 5 34 Included in other comprehensive income (loss) (64 ) 10 (54 ) (114 ) (17 ) (131 ) Purchases 4,823 1,496 6,319 3,958 1,223 5,181 Sales (2,352 ) (223 ) (2,575 ) (722 ) (255 ) (977 ) Settlements (2,252 ) (523 ) (2,775 ) (4,923 ) (1,101 ) (6,024 ) Fair value at end of period $ 16,118 $ 1,512 $ 17,630 $ 13,434 $ 2,862 $ 16,296 Financial instruments not measured at fair value In estimating the fair values of its financial instruments not measured at fair value, the Company used the following methods and assumptions: Cash and cash equivalents The carrying amount for cash and cash equivalents is a reasonable estimate of fair value due to the short-term maturity of these investments. Deposits with banks The fair value of deposits with banks is estimated based on rates currently offered for deposits of similar remaining maturities, where applicable. Notes receivable, net The fair value of notes receivable, net is estimated based on current market rates being offered for notes with similar maturities and credit quality. Deposits The carrying values of escrow and other deposit accounts approximate fair value due to the short-term nature of these liabilities. Notes and contracts payable The fair value of notes and contracts payable is estimated based on current rates offered to the Company for debt of similar remaining maturities. The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments not measured at fair value as of March 31, 2018 and December 31, 2017: Carrying Estimated fair value (in thousands) Amount Total Level 1 Level 2 Level 3 March 31, 2018 Assets: Cash and cash equivalents $ 1,176,618 $ 1,176,618 $ 1,176,618 $ — $ — Deposits with banks $ 39,215 $ 39,033 $ 5,542 $ 33,491 $ — Notes receivable, net $ 6,651 $ 6,316 $ — $ — $ 6,316 Liabilities: Deposits $ 3,161,706 $ 3,161,706 $ 3,161,706 $ — $ — Notes and contracts payable $ 731,454 $ 742,937 $ — $ 739,782 $ 3,155 Carrying Estimated fair value (in thousands) Amount Total Level 1 Level 2 Level 3 December 31, 2017 Assets: Cash and cash equivalents $ 1,387,226 $ 1,387,226 $ 1,387,226 $ — $ — Deposits with banks $ 41,335 $ 41,259 $ 6,846 $ 34,413 $ — Notes receivable, net $ 7,066 $ 6,798 $ — $ — $ 6,798 Liabilities: Deposits $ 3,070,566 $ 3,070,566 $ 3,070,566 $ — $ — Notes and contracts payable $ 732,810 $ 755,670 $ — $ 751,827 $ 3,843

Share-Based Compensation Plans

Share-Based Compensation Plans	3 Months Ended
	Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	Note 12 – Share-Based Compensation The following table presents compensation expense associated with the Company’s share-based compensation plans: Three Months Ended (in thousands) 2018 2017 Expense: RSUs $ 18,526 $ 16,014 Stock options — 67 Employee stock purchase plan 983 951 $ 19,509 $ 17,032 The following table summarizes RSU activity for the three months ended March 31, 2018: (in thousands, except weighted-average grant-date fair value) Shares Weighted-average fair value Unvested at December 31, 2017 1,411 $ 36.66 Granted during 2018 656 $ 56.75 Vested during 2018 (751 ) $ 41.28 Forfeited during 2018 (6 ) $ 40.10 Unvested at March 31, 2018 1,310 $ 44.04

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) ("AOCI")	3 Months Ended
	Mar. 31, 2018
Accumulated Other Comprehensive Income Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income (Loss) ("AOCI")	Note 13 – Accumulated Other Comprehensive Income (Loss) (“AOCI”) The following table presents a summary of the changes in each component of AOCI for the three months ended March 31, 2018: (in thousands) Unrealized gains (losses) on securities Foreign currency translation adjustment Pension benefit adjustment Accumulated other comprehensive income (loss) Balance at December 31, 2017 $ 36,803 $ (38,832 ) $ (65,460 ) $ (67,489 ) Cumulative-effect adjustment, net of (40,550 ) — — (40,550 ) Change in unrealized gains (losses) on debt securities (60,914 ) — — (60,914 ) Change in foreign currency translation adjustment — (3,752 ) — (3,752 ) Amortization of net actuarial loss — — 1,205 1,205 Amortization of prior service credit — — (1,045 ) (1,045 ) Tax effect 14,118 — (40 ) 14,078 Balance at March 31, 2018 $ (50,543 ) $ (42,584 ) $ (65,340 ) $ (158,467 ) Allocated to the Company $ (50,544 ) $ (42,584 ) $ (65,340 ) $ (158,468 ) Allocated to noncontrolling interests 1 — — 1 Balance at March 31, 2018 $ (50,543 ) $ (42,584 ) $ (65,340 ) $ (158,467 ) (1) Upon adoption of new accounting guidance on January 1, 2018, the Company recognized a cumulative-effect adjustment to retained earnings for cumulative net unrealized gains related to its investments in equity securities. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance. The following table presents the other comprehensive income (loss) reclassification adjustments for the three months ended March 31, 2018 and 2017: (in thousands) Unrealized gains (losses) on securities Foreign currency translation adjustment Pension benefit adjustment Total other comprehensive income (loss) Three Months Ended March 31, 2018 Pretax change before reclassifications $ (61,483 ) $ (3,752 ) $ — $ (65,235 ) Reclassifications out of AOCI 569 — 160 729 Tax effect 14,118 — (40 ) 14,078 Total other comprehensive income (loss), net of tax $ (46,796 ) $ (3,752 ) $ 120 $ (50,428 ) Three Months Ended March 31, 2017 Pretax change before reclassifications $ 39,624 $ 3,434 $ — $ 43,058 Reclassifications out of AOCI 8 — 5,722 5,730 Tax effect (14,181 ) — (2,189 ) (16,370 ) Total other comprehensive income (loss), net of tax $ 25,451 $ 3,434 $ 3,533 $ 32,418 The following table presents the effects of the reclassifications out of AOCI on the respective line items in the condensed consolidated statements of income: (in thousands) Amounts reclassified from AOCI Affected line items in the condensed consolidated statements of income Three Months Ended March 31, 2018 2017 Unrealized gains (losses) on securities: Net realized gains (losses) on sales of securities (1) $ (569 ) $ (8 ) Net realized investment losses Pretax total $ (569 ) $ (8 ) Tax effect $ 132 $ 3 Pension benefit adjustment (2): Amortization of net actuarial loss $ (1,205 ) $ (6,933 ) Other operating expenses Amortization of prior service credit 1,045 1,211 Other operating expenses Pretax total $ (160 ) $ (5,722 ) Tax effect $ 40 $ 2,189 (1) For the three months ended March 31, 2018, net realized losses of $0.6 million related to sales of debt securities classified as available-for-sale. For the three months ended March 31, 2017, net realized losses of $8 thousand related to sales of debt and equity securities classified as available-for-sale. (2) These components of AOCI are components of net periodic cost. See Note 10 Employee Benefit Plans for additional details.

Litigation and Regulatory Conti

Litigation and Regulatory Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Litigation and Regulatory Contingencies	Note 14 – Litigation and Regulatory Contingencies The Company and its subsidiaries are parties to a number of non-ordinary course lawsuits. These lawsuits frequently are similar in nature to other lawsuits pending against the Company’s competitors. For those non-ordinary course lawsuits where the Company has determined that a loss is both probable and reasonably estimable, a liability representing the best estimate of the Company’s financial exposure based on known facts has been recorded. Actual losses may materially differ from the amounts recorded. For a substantial majority of these lawsuits, however, it is not possible to assess the probability of loss. Most of these lawsuits are putative class actions which require a plaintiff to satisfy a number of procedural requirements before proceeding to trial. These requirements include, among others, demonstration to a court that the law proscribes in some manner the Company’s activities, the making of factual allegations sufficient to suggest that the Company’s activities exceeded the limits of the law and a determination by the court—known as class certification—that the law permits a group of individuals to pursue the case together as a class. In certain instances the Company may also be able to compel the plaintiff to arbitrate its claim on an individual basis. If these procedural requirements are not met, either the lawsuit cannot proceed or, as is the case with class certification or compelled arbitration, the plaintiffs lose the financial incentive to proceed with the case (or the amount at issue effectively becomes de minimis). Frequently, a court’s determination as to these procedural requirements is subject to appeal to a higher court. As a result of, among other factors, ambiguities and inconsistencies in the myriad laws applicable to the Company’s business and the uniqueness of the factual issues presented in any given lawsuit, the Company often cannot determine the probability of loss until a court has finally determined that a plaintiff has satisfied applicable procedural requirements. Furthermore, because most of these lawsuits are putative class actions, it is often impossible to estimate the possible loss or a range of loss amounts, even where the Company has determined that a loss is reasonably possible. Generally class actions involve a large number of people and the effort to determine which people satisfy the requirements to become plaintiffs—or class members—is often time consuming and burdensome. Moreover, these lawsuits raise complex factual issues which result in uncertainty as to their outcome and, ultimately, make it difficult for the Company to estimate the amount of damages which a plaintiff might successfully prove. In addition, many of the Company’s businesses are regulated by various federal, state, local and foreign governmental agencies and are subject to numerous statutory guidelines. These regulations and statutory guidelines often are complex, inconsistent or ambiguous, which results in additional uncertainty as to the outcome of a given lawsuit—including the amount of damages a plaintiff might be afforded—or makes it difficult to analogize experience in one case or jurisdiction to another case or jurisdiction. Most of the non-ordinary course lawsuits to which the Company and its subsidiaries are parties challenge practices in the Company’s title insurance business, though a limited number of cases also pertain to the Company’s other businesses. These lawsuits include, among others, cases alleging, among other assertions, that the Company or one of its subsidiaries overcharged or improperly charged fees for products and services, participated in the conveyance of illusory property interests, improperly handled property and casualty claims and gave items of value to builders and others as inducements to refer business in violation of certain laws, such as consumer protection laws and laws generally prohibiting unfair business practices, and certain obligations, including: • Chavez v. First American Specialty Insurance Company, filed on June 29, 2017 and pending in the Superior Court of the State of California, County of Los Angeles, • Kaufman v. First American Financial Corporation, et al., filed on December 21, 2007 and pending in the Superior Court of the State of California, County of Los Angeles, • Lennen v. First American Financial Corporation, et al., filed on May 19, 2016 and pending in the United States District Court for the Middle District of Florida, • Sjobring v. First American Financial Corporation, et al., filed on February 25, 2005 and pending in the Superior Court of the State of California, County of Los Angeles, • Tenefufu vs. First American Specialty Insurance Company, filed on June 1, 2017 and pending in the Superior Court of the State of California, County of Sacramento, and • Wilmot v. First American Financial Corporation, et al., filed on April 20, 2007 and pending in the Superior Court of the State of California, County of Los Angeles. All of these lawsuits, except Kaufman and Sjobring, are putative class actions for which a class has not been certified. For the reasons described above, the Company has not yet been able to assess the probability of loss or estimate the possible loss or the range of loss or, where the Company has been able to make an estimate, the Company believes the amount is not material to the condensed consolidated financial statements as a whole. While some of the lawsuits described above may be material to the Company’s operating results in any particular period if an unfavorable outcome results, the Company does not believe that any of these lawsuits will have a material adverse effect on the Company’s overall financial condition or liquidity. The Company also is a party to non-ordinary course lawsuits other than those described above. With respect to these lawsuits, the Company has determined either that a loss is not reasonably possible or that the estimated loss or range of loss, if any, is not material to the condensed consolidated financial statements as a whole. The Company’s title insurance, property and casualty insurance, home warranty, banking, thrift, trust and wealth management businesses are regulated by various federal, state and local governmental agencies. Many of the Company’s other businesses operate within statutory guidelines. Consequently, the Company may from time to time be subject to examination or investigation by such governmental agencies. Currently, governmental agencies are examining or investigating certain of the Company’s operations. These exams or investigations include inquiries into, among other matters, pricing and rate setting practices in the title insurance industry, competition in the title insurance industry, real estate settlement service, customer acquisition and retention practices and agency relationships. With respect to matters where the Company has determined that a loss is both probable and reasonably estimable, the Company has recorded a liability representing its best estimate of the financial exposure based on known facts. While the ultimate disposition of each such exam or investigation is not yet determinable, the Company does not believe that individually or in the aggregate they will have a material adverse effect on the Company’s financial condition, results of operations or cash flows. These exams or investigations could, however, result in changes to the Company’s business practices which could ultimately have a material adverse impact on the Company’s financial condition, results of operations or cash flows. The Company’s Canadian operations provide certain services to lenders which it believes to be exempt from excise tax under applicable Canadian tax laws. However, in October 2014, the Canadian taxing authority provided internal guidance that the services in question should be subject to the excise tax. While discussions with the taxing authority are ongoing, the Company believes that the guidance may result in an assessment. The amount, if any, of such assessment is not currently known, and any such assessment would be subject to negotiation. In the event that the Company disagrees with the ultimate assessment, the Company intends to avail itself of avenues of appeal. While the Company believes it is reasonably likely that the Company would prevail on the merits, a loss associated with the matter is possible. In light of the foregoing, the Company is not currently able to reasonably estimate a loss or range of loss associated with the matter. While such a loss could be material to the Company’s operating results in any particular period if an unfavorable outcome results, the Company does not believe that this matter will have a material adverse effect on the Company’s overall financial condition or liquidity. The Company and its subsidiaries also are involved in numerous ongoing routine legal and regulatory proceedings related to their operations. With respect to each of these proceedings, the Company has determined either that a loss is not reasonably possible or that the estimated loss or range of loss, if any, is not material to the condensed consolidated financial statements as a whole.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Information	Note 15 – Segment Information The Company consists of the following reportable segments and a corporate function: • The Company’s title insurance and services segment issues title insurance policies on residential and commercial property in the United States and offers similar or related products and services internationally. This segment also provides closing and/or escrow services; accommodates tax-deferred exchanges of real estate; provides products, services and solutions involving the use of real property related data designed to mitigate risk or otherwise facilitate real estate transactions; maintains, manages and provides access to title plant records and images; and provides appraisals and other valuation-related products and services, lien release and document custodial services, default-related products and services, evidence of title, and banking, trust and wealth management services. The Company, through its principal title insurance subsidiary and such subsidiary’s affiliates, transacts its title insurance business through a network of direct operations and agents. Through this network, the Company issues policies in the 49 states that permit the issuance of title insurance policies and the District of Columbia. The Company also offers title insurance, closing services and similar or related products and services, either directly or through third parties in other countries, including Canada, the United Kingdom, Australia, South Korea and various other established and emerging markets. • The Company’s specialty insurance segment issues property and casualty insurance policies and sells home warranty products. The property and casualty insurance business provides insurance coverage to residential homeowners and renters for liability losses and typical hazards such as fire, theft, vandalism and other types of property damage. This business is licensed to issue policies in all 50 states and the District of Columbia and actively issues policies in 47 states. The majority of policy liability is in the western United States, including approximately 63% in California. In certain markets it also offers preferred risk auto insurance to better compete with other carriers offering bundled home and auto insurance. The home warranty business provides residential service contracts that cover residential systems, such as heating and air conditioning systems, and certain appliances against failures that occur as the result of normal usage during the coverage period. This business currently operates in 39 states and the District of Columbia. The corporate function consists primarily of certain financing facilities as well as the corporate services that support the Company’s business operations. Selected financial information about the Company’s operations, by segment, is as follows: For the three months ended March 31, 2018: (in thousands) Revenues Income (loss) Depreciation Capital Title Insurance and Services $ 1,185,467 $ 102,384 $ 28,117 $ 21,070 Specialty Insurance 113,384 9,898 1,592 2,531 Corporate (1,182 ) (19,217 ) 38 — Eliminations (281 ) — — — $ 1,297,388 $ 93,065 $ 29,747 $ 23,601 (in thousands) Direct Agent Information Net Net realized Total Title Insurance and Services $ 434,152 $ 527,714 $ 186,023 $ 41,401 $ (3,823 ) $ 1,185,467 Specialty Insurance 109,726 — 2,901 2,588 (1,831 ) 113,384 $ 543,878 $ 527,714 $ 188,924 $ 43,989 $ (5,654 ) $ 1,298,851 For the three months ended March 31, 2017: (in thousands) Revenues Income (loss) Depreciation Capital Title Insurance and Services $ 1,202,948 $ 98,245 $ 28,552 $ 30,393 Specialty Insurance 110,265 10,039 1,551 1,173 Corporate 4,117 (24,404 ) 44 — Eliminations (287 ) — — — $ 1,317,043 $ 83,880 $ 30,147 $ 31,566 (in thousands) Direct Agent Information Net Net realized Total Title Insurance and Services $ 421,959 $ 574,582 $ 180,035 $ 26,616 $ (244 ) $ 1,202,948 Specialty Insurance 105,050 — 2,739 2,329 147 110,265 $ 527,009 $ 574,582 $ 182,774 $ 28,945 $ (97 ) $ 1,313,213

Basis of Condensed Consolidat24

Basis of Condensed Consolidated Financial Statements (Policies)	3 Months Ended
	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In May 2017, the Financial Accounting Standards Board (“FASB”) issued updated guidance intended to reduce diversity in practice by clarifying which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In March 2017, the FASB issued updated guidance intended to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost through the disaggregation of the service cost component from the other components of net benefit cost. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The Company adopted this change in accounting principle at the beginning of 2018 and applied the change retrospectively to the prior year. As a result, other components of net benefit cost totaling $8.0 million were reclassified from personnel costs to other operating expenses on the condensed consolidated statement of income for the three months ended March 31, 2017. See Note 10 Employee Benefit Plans for further information on the Company’s net periodic pension costs. In January 2017, the FASB issued updated guidance to clarify the definition of a business with the objective of providing guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued updated guidance intended to reduce the diversity in practice on presenting restricted cash and restricted cash equivalents in the statement of cash flows. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In October 2016, the FASB issued updated guidance intended to simplify and improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. The updated guidance, which eliminates the intra-entity transfers exception, requires entities to recognize the income tax consequences of intra-entity transfers of assets, other than inventory, when the transfers occur. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In August 2016, the FASB issued updated guidance intended to eliminate the diversity in practice regarding the presentation and classification of certain cash receipts and cash payments in the statement of cash flows. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements. In January 2016, the FASB issued updated guidance intended to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. In addition to making other targeted improvements to current guidance, the updated guidance also requires all equity investments, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, to be measured at fair value with changes in the fair value recognized through net income. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The Company adopted this guidance at the beginning of 2018 and recognized cumulative net unrealized gains, net of taxes, of $40.6 million related to its investments in equity securities, previously classified as available-for-sale, through a cumulative-effect adjustment to retained earnings. See Note 4 Debt and Equity Securities for further discussion of the Company’s investments in equity securities. In May 2014, the FASB issued updated guidance for recognizing revenue from contracts with customers to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability within and across industries, and across capital markets. The new revenue standard contains principles that an entity will apply to determine the measurement of revenue and the timing of recognition. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. Revenue from insurance contracts is not within the scope of this guidance. In August 2015, the FASB issued updated guidance which defers the effective date of this guidance by one year. In 2016, the FASB issued additional updates to the new guidance primarily to clarify, among other things, the implementation guidance related to principal versus agent considerations, identifying performance obligations, accounting for licenses of intellectual property, and to provide narrow-scope improvements and additional practical expedients. In February 2017, the FASB issued an additional update to the new guidance to clarify the scope of derecognition guidance for nonfinancial assets and to provide guidance for partial sales of nonfinancial assets. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The Company elected to adopt the new guidance under the modified retrospective approach, which, except for the disclosure requirements, did not have a material impact on its condensed consolidated financial statements. See Note 2 Adoption of Revenue Guidance for further information about the Company’s revenues within the scope of the new guidance.
Pending Accounting Pronouncements	Pending Accounting Pronouncements In January 2017, the FASB issued updated guidance intended to simplify how an entity tests goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Under the updated guidance, an entity will perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, with the loss recognized limited to the total amount of goodwill allocated to that reporting unit. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. The Company does not expect the adoption of this guidance to have a material impact on its condensed consolidated financial statements. In June 2016, the FASB issued updated guidance intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The updated guidance replaces the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires the consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. The Company is currently assessing the impact of the new guidance on its condensed consolidated financial statements. In February 2016, the FASB issued updated guidance that requires the rights and obligations associated with leasing arrangements be reflected on the balance sheet in order to increase transparency and comparability among organizations. Under the updated guidance, lessees will be required to recognize a right-of-use asset and a liability to make lease payments and disclose key information about leasing arrangements. The updated guidance is effective for interim and annual reporting periods beginning after December 15, 2018, with early adoption permitted. While the Company is currently evaluating the impact the new guidance will have on its condensed consolidated financial statements, the Company expects the adoption of the new guidance will result in a material increase in the assets and liabilities on its condensed consolidated balance sheets and will likely have an insignificant impact on its condensed consolidated statements of income and statements of cash flows.

Debt and Equity Securities (Tab

Debt and Equity Securities (Tables)	3 Months Ended
	Mar. 31, 2018
Investments Debt And Equity Securities [Abstract]
Investments in Debt Securities, Classified as Available-For-Sale	Investments in debt securities, classified as available-for-sale, are as follows: (in thousands) Amortized Gross unrealized Estimated Gains Losses March 31, 2018 U.S. Treasury bonds $ 189,322 $ 602 $ (3,146 ) $ 186,778 Municipal bonds 1,104,512 6,013 (18,648 ) 1,091,877 Foreign government bonds 155,001 176 (2,151 ) 153,026 Governmental agency bonds 223,473 680 (4,471 ) 219,682 Governmental agency mortgage-backed securities 2,325,348 2,692 (33,744 ) 2,294,296 U.S. corporate debt securities 731,649 4,721 (10,054 ) 726,316 Foreign corporate debt securities 263,396 1,631 (2,892 ) 262,135 $ 4,992,701 $ 16,515 $ (75,106 ) $ 4,934,110 December 31, 2017 U.S. Treasury bonds $ 173,049 $ 2,199 $ (1,250 ) $ 173,998 Municipal bonds 1,031,146 12,185 (7,394 ) 1,035,937 Foreign government bonds 170,220 489 (1,221 ) 169,488 Governmental agency bonds 212,731 1,061 (2,322 ) 211,470 Governmental agency mortgage-backed securities 2,172,377 3,168 (16,588 ) 2,158,957 U.S. corporate debt securities 734,409 11,768 (2,962 ) 743,215 Foreign corporate debt securities 256,430 4,145 (956 ) 259,619 $ 4,750,362 $ 35,015 $ (32,693 ) $ 4,752,684
Gross Unrealized Losses on Investments in Debt Securities	Gross unrealized losses on investments in debt securities are as follows: Less than 12 months 12 months or longer Total (in thousands) Estimated Unrealized Estimated Unrealized Estimated Unrealized March 31, 2018 U.S. Treasury bonds $ 109,820 $ (2,009 ) $ 38,554 $ (1,137 ) $ 148,374 $ (3,146 ) Municipal bonds 503,940 (6,441 ) 217,817 (12,207 ) 721,757 (18,648 ) Foreign government bonds 93,606 (1,397 ) 13,963 (754 ) 107,569 (2,151 ) Governmental agency bonds 97,136 (1,542 ) 93,289 (2,929 ) 190,425 (4,471 ) Governmental agency mortgage-backed securities 976,932 (15,420 ) 766,336 (18,324 ) 1,743,268 (33,744 ) U.S. corporate debt securities 383,413 (7,256 ) 56,030 (2,798 ) 439,443 (10,054 ) Foreign corporate debt securities 154,534 (2,604 ) 5,959 (288 ) 160,493 (2,892 ) $ 2,319,381 $ (36,669 ) $ 1,191,948 $ (38,437 ) $ 3,511,329 $ (75,106 ) December 31, 2017 U.S. Treasury bonds $ 78,605 $ (511 ) $ 37,498 $ (739 ) $ 116,103 $ (1,250 ) Municipal bonds 279,292 (1,714 ) 226,895 (5,680 ) 506,187 (7,394 ) Foreign government bonds 98,942 (972 ) 6,678 (249 ) 105,620 (1,221 ) Governmental agency bonds 55,707 (409 ) 93,737 (1,913 ) 149,444 (2,322 ) Governmental agency mortgage-backed securities 671,871 (4,868 ) 774,959 (11,720 ) 1,446,830 (16,588 ) U.S. corporate debt securities 171,817 (1,568 ) 60,724 (1,394 ) 232,541 (2,962 ) Foreign corporate debt securities 81,525 (821 ) 5,697 (135 ) 87,222 (956 ) $ 1,437,759 $ (10,863 ) $ 1,206,188 $ (21,830 ) $ 2,643,947 $ (32,693 )
Investments in Debt Securities	Investments in debt securities at March 31, 2018, by contractual maturities, are as follows: (in thousands) Due in one Due after Due after Due after Total U.S. Treasury bonds Amortized cost $ 37,530 $ 55,856 $ 44,730 $ 51,206 $ 189,322 Estimated fair value $ 37,388 $ 54,931 $ 43,790 $ 50,669 $ 186,778 Municipal bonds Amortized cost $ 70,776 $ 293,994 $ 272,117 $ 467,625 $ 1,104,512 Estimated fair value $ 70,767 $ 293,665 $ 269,827 $ 457,618 $ 1,091,877 Foreign government bonds Amortized cost $ 13,139 $ 113,211 $ 12,517 $ 16,134 $ 155,001 Estimated fair value $ 13,143 $ 112,212 $ 12,430 $ 15,241 $ 153,026 Governmental agency bonds Amortized cost $ 31,347 $ 78,487 $ 65,136 $ 48,503 $ 223,473 Estimated fair value $ 31,210 $ 76,941 $ 64,331 $ 47,200 $ 219,682 U.S. corporate debt securities Amortized cost $ 21,390 $ 321,444 $ 315,735 $ 73,080 $ 731,649 Estimated fair value $ 21,431 $ 318,706 $ 312,509 $ 73,670 $ 726,316 Foreign corporate debt securities Amortized cost $ 18,674 $ 137,519 $ 94,093 $ 13,110 $ 263,396 Estimated fair value $ 18,701 $ 136,902 $ 93,212 $ 13,320 $ 262,135 Total debt securities excluding mortgage-backed securities Amortized cost $ 192,856 $ 1,000,511 $ 804,328 $ 669,658 $ 2,667,353 Estimated fair value $ 192,640 $ 993,357 $ 796,099 $ 657,718 $ 2,639,814 Total mortgage-backed securities Amortized cost $ 2,325,348 Estimated fair value $ 2,294,296 Total debt securities Amortized cost $ 4,992,701 Estimated fair value $ 4,934,110
Investments in Equity Securities	Investments in equity securities are as follows: Cost Estimated (in thousands) March 31, 2018 Preferred stocks $ 18,692 $ 18,238 Common stocks 405,633 441,239 $ 424,325 $ 459,477 December 31, 2017 Preferred stocks $ 19,233 $ 18,990 Common stocks 394,439 447,526 $ 413,672 $ 466,516
Composition of Investment Portfolio by Credit Rating Agencies	The composition of the investment portfolio at March 31, 2018, by credit rating, is as follows: A- or higher BBB+ to BBB- Non-Investment Grade Total (in thousands, except percentages) Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage March 31, 2018 Debt securities: U.S. Treasury bonds $ 186,778 100.0 $ — — $ — — $ 186,778 100.0 Municipal bonds 1,012,141 92.7 59,627 5.5 20,109 1.8 1,091,877 100.0 Foreign government bonds 123,117 80.5 24,484 16.0 5,425 3.5 153,026 100.0 Governmental agency bonds 219,682 100.0 — — — — 219,682 100.0 Governmental agency mortgage-backed securities 2,294,296 100.0 — — — — 2,294,296 100.0 U.S. corporate debt securities 259,578 35.7 239,276 32.9 227,462 31.4 726,316 100.0 Foreign corporate debt securities 122,163 46.6 108,273 41.3 31,699 12.1 262,135 100.0 Total debt securities 4,217,755 85.5 431,660 8.7 284,695 5.8 4,934,110 100.0 Preferred stocks — — 13,369 73.3 4,869 26.7 18,238 100.0 Total $ 4,217,755 85.2 $ 445,029 9.0 $ 289,564 5.8 $ 4,952,348 100.0
Composition of Debt Securities Portfolio in Unrealized Loss Position by Credit Rating Agencies	The composition of the debt securities portfolio in an unrealized loss position at March 31, 2018, by credit rating, is as follows: A- or higher BBB+ to BBB- Non-Investment Grade Total (in thousands, except percentages) Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage Estimated fair value Percentage March 31, 2018 U.S. Treasury bonds $ 148,374 100.0 $ — — $ — — $ 148,374 100.0 Municipal bonds 683,529 94.7 36,359 5.0 1,869 0.3 721,757 100.0 Foreign government bonds 80,575 74.9 23,833 22.2 3,161 2.9 107,569 100.0 Governmental agency bonds 190,425 100.0 — — — — 190,425 100.0 Governmental agency mortgage-backed securities 1,743,268 100.0 — — — — 1,743,268 100.0 U.S. corporate debt securities 195,799 44.6 172,175 39.2 71,469 16.2 439,443 100.0 Foreign corporate debt securities 74,495 46.4 69,761 43.5 16,237 10.1 160,493 100.0 Total $ 3,116,465 88.8 $ 302,128 8.6 $ 92,736 2.6 $ 3,511,329 100.0

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill by Operating Segment	A summary of the changes in the carrying amount of goodwill, by operating segment, for the three months ended March 31, 2018, is as follows: (in thousands) Title Specialty Total Balance as of December 31, 2017 $ 1,066,240 $ 46,765 $ 1,113,005 Acquisitions 21,614 — 21,614 Foreign currency translation (1,063 ) — (1,063 ) Balance as of March 31, 2018 $ 1,086,791 $ 46,765 $ 1,133,556

Other Intangible Assets (Tables

Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Intangible Assets Gross Excluding Goodwill [Abstract]
Schedule of Other Intangible Assets	Other intangible assets consist of the following: (in thousands) March 31, 2018 December 31, Finite-lived intangible assets: Customer relationships $ 97,300 $ 106,086 Noncompete agreements 11,139 11,509 Trademarks 9,203 9,229 Internal-use software licenses 22,534 28,956 Patents 2,840 2,840 143,016 158,620 Accumulated amortization (64,052 ) (75,591 ) 78,964 83,029 Indefinite-lived intangible assets: Licenses 16,884 16,884 $ 95,848 $ 99,913
Estimated Amortization Expense for Finite-Lived Intangible Assets	Estimated amortization expense for finite-lived intangible assets for the next five years is as follows: Year (in thousands) Remainder of 2018 $ 16,144 2019 $ 15,401 2020 $ 10,638 2021 $ 7,680 2022 $ 7,031 2023 $ 5,864

Reserve for Known and Incurre28

Reserve for Known and Incurred but Not Reported Claims (Tables)	3 Months Ended
	Mar. 31, 2018
Insurance Loss Reserves [Abstract]
Activity in Reserve for Known and Incurred but Not Reported Claims	Activity in the reserve for known and incurred but not reported claims is summarized as follows: Three months ended (in thousands) 2018 2017 Balance at beginning of period $ 1,028,933 $ 1,025,863 Provision related to: Current year 90,970 99,408 Prior years 9,610 2,980 100,580 102,388 Payments, net of recoveries, related to: Current year 32,285 30,610 Prior years 72,329 83,404 104,614 114,014 Other (3,553 ) (772 ) Balance at end of period $ 1,021,346 $ 1,013,465
Summary of Loss Reserves	A summary of the Company’s loss reserves is as follows: (in thousands, except percentages) March 31, 2018 December 31, 2017 Known title claims $ 88,298 8.7 % $ 83,094 8.1 % Incurred but not reported claims 870,421 85.2 % 875,724 85.1 % Total title claims 958,719 93.9 % 958,818 93.2 % Non-title claims 62,627 6.1 % 70,115 6.8 % Total loss reserves $ 1,021,346 100.0 % $ 1,028,933 100.0 %

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The computation of basic and diluted earnings per share is as follows: Three Months Ended (in thousands, except per share amounts) 2018 2017 Numerator Net income attributable to the Company $ 76,227 $ 58,282 Denominator Basic weighted-average shares 112,232 111,179 Effect of dilutive employee stock options and 803 643 Diluted weighted-average shares 113,035 111,822 Net income per share attributable to the Company’s stockholders Basic $ 0.68 $ 0.52 Diluted $ 0.67 $ 0.52

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Net Periodic Cost	Net periodic cost related to the Company’s defined benefit pension and supplemental benefit plans includes the following components: Three Months Ended (in thousands) 2018 2017 Expense: Service costs $ 130 $ 184 Interest costs 2,018 4,641 Expected return on plan assets — (2,370 ) Amortization of net actuarial loss 1,205 6,933 Amortization of prior service credit (1,045 ) (1,211 ) $ 2,308 $ 8,177

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Assets Measured on Recurring Basis	The following tables present the fair values of the Company’s assets, measured on a recurring basis, as of March 31, 2018 and December 31, 2017: (in thousands) Total Level 1 Level 2 Level 3 March 31, 2018 Assets: Debt securities: U.S. Treasury bonds $ 186,778 $ — $ 186,778 $ — Municipal bonds 1,091,877 — 1,091,877 — Foreign government bonds 153,026 — 153,026 — Governmental agency bonds 219,682 — 219,682 — Governmental agency mortgage-backed securities 2,294,296 — 2,294,296 — U.S. corporate debt securities 726,316 — 710,198 16,118 Foreign corporate debt securities 262,135 — 260,623 1,512 4,934,110 — 4,916,480 17,630 Equity securities: Preferred stocks 18,238 18,238 — — Common stocks 441,239 441,239 — — 459,477 459,477 — — Total assets $ 5,393,587 $ 459,477 $ 4,916,480 $ 17,630 (in thousands) Total Level 1 Level 2 Level 3 December 31, 2017 Assets: Debt securities: U.S. Treasury bonds $ 173,998 $ — $ 173,998 $ — Municipal bonds 1,035,937 — 1,035,937 — Foreign government bonds 169,488 — 169,488 — Governmental agency bonds 211,470 — 211,470 — Governmental agency mortgage-backed securities 2,158,957 — 2,158,957 — U.S. corporate debt securities 743,215 — 700,347 42,868 Foreign corporate debt securities 259,619 — 257,953 1,666 4,752,684 — 4,708,150 44,534 Equity securities: Preferred stocks 18,990 18,990 — — Common stocks 447,526 447,526 — — 466,516 466,516 — — Total assets $ 5,219,200 $ 466,516 $ 4,708,150 $ 44,534
Summary of Changes in Fair Value of Level 3 Assets Measured on Recurring Basis	The following table presents a summary of the changes in the fair values of Level 3 assets, measured on a recurring basis, for the three months ended March 31, 2018 and 2017: March 31, 2018 March 31, 2017 (in thousands) U.S. corporate debt securities Foreign corporate debt securities Total U.S. corporate debt securities Foreign corporate debt securities Total Fair value at beginning of period $ 42,868 $ 1,666 $ 44,534 $ 46,665 $ 6,268 $ 52,933 Transfers into Level 3 1,580 — 1,580 1,715 224 1,939 Transfers out of Level 3 (28,523 ) (916 ) (29,439 ) (33,174 ) (3,485 ) (36,659 ) Net realized and unrealized gains (losses): Included in earnings 38 2 40 29 5 34 Included in other comprehensive income (loss) (64 ) 10 (54 ) (114 ) (17 ) (131 ) Purchases 4,823 1,496 6,319 3,958 1,223 5,181 Sales (2,352 ) (223 ) (2,575 ) (722 ) (255 ) (977 ) Settlements (2,252 ) (523 ) (2,775 ) (4,923 ) (1,101 ) (6,024 ) Fair value at end of period $ 16,118 $ 1,512 $ 17,630 $ 13,434 $ 2,862 $ 16,296
Carrying Amounts and Estimated Fair Values of Financial Instruments Not Measured at Fair Value	The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments not measured at fair value as of March 31, 2018 and December 31, 2017: Carrying Estimated fair value (in thousands) Amount Total Level 1 Level 2 Level 3 March 31, 2018 Assets: Cash and cash equivalents $ 1,176,618 $ 1,176,618 $ 1,176,618 $ — $ — Deposits with banks $ 39,215 $ 39,033 $ 5,542 $ 33,491 $ — Notes receivable, net $ 6,651 $ 6,316 $ — $ — $ 6,316 Liabilities: Deposits $ 3,161,706 $ 3,161,706 $ 3,161,706 $ — $ — Notes and contracts payable $ 731,454 $ 742,937 $ — $ 739,782 $ 3,155 Carrying Estimated fair value (in thousands) Amount Total Level 1 Level 2 Level 3 December 31, 2017 Assets: Cash and cash equivalents $ 1,387,226 $ 1,387,226 $ 1,387,226 $ — $ — Deposits with banks $ 41,335 $ 41,259 $ 6,846 $ 34,413 $ — Notes receivable, net $ 7,066 $ 6,798 $ — $ — $ 6,798 Liabilities: Deposits $ 3,070,566 $ 3,070,566 $ 3,070,566 $ — $ — Notes and contracts payable $ 732,810 $ 755,670 $ — $ 751,827 $ 3,843

Share-Based Compensation Plans

Share-Based Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expenses Associated with Share-Based Compensation Plans	The following table presents compensation expense associated with the Company’s share-based compensation plans: Three Months Ended (in thousands) 2018 2017 Expense: RSUs $ 18,526 $ 16,014 Stock options — 67 Employee stock purchase plan 983 951 $ 19,509 $ 17,032
Summary of RSU Activity	The following table summarizes RSU activity for the three months ended March 31, 2018: (in thousands, except weighted-average grant-date fair value) Shares Weighted-average fair value Unvested at December 31, 2017 1,411 $ 36.66 Granted during 2018 656 $ 56.75 Vested during 2018 (751 ) $ 41.28 Forfeited during 2018 (6 ) $ 40.10 Unvested at March 31, 2018 1,310 $ 44.04

Accumulated Other Comprehensi33

Accumulated Other Comprehensive Income (Loss) ("AOCI") (Tables)	3 Months Ended
	Mar. 31, 2018
Accumulated Other Comprehensive Income Other Comprehensive Income [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The following table presents a summary of the changes in each component of AOCI for the three months ended March 31, 2018: (in thousands) Unrealized gains (losses) on securities Foreign currency translation adjustment Pension benefit adjustment Accumulated other comprehensive income (loss) Balance at December 31, 2017 $ 36,803 $ (38,832 ) $ (65,460 ) $ (67,489 ) Cumulative-effect adjustment, net of (40,550 ) — — (40,550 ) Change in unrealized gains (losses) on debt securities (60,914 ) — — (60,914 ) Change in foreign currency translation adjustment — (3,752 ) — (3,752 ) Amortization of net actuarial loss — — 1,205 1,205 Amortization of prior service credit — — (1,045 ) (1,045 ) Tax effect 14,118 — (40 ) 14,078 Balance at March 31, 2018 $ (50,543 ) $ (42,584 ) $ (65,340 ) $ (158,467 ) Allocated to the Company $ (50,544 ) $ (42,584 ) $ (65,340 ) $ (158,468 ) Allocated to noncontrolling interests 1 — — 1 Balance at March 31, 2018 $ (50,543 ) $ (42,584 ) $ (65,340 ) $ (158,467 ) (1) Upon adoption of new accounting guidance on January 1, 2018, the Company recognized a cumulative-effect adjustment to retained earnings for cumulative net unrealized gains related to its investments in equity securities. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance.
Adjustments for Reclassification of Other Comprehensive Income (Loss)	The following table presents the other comprehensive income (loss) reclassification adjustments for the three months ended March 31, 2018 and 2017: (in thousands) Unrealized gains (losses) on securities Foreign currency translation adjustment Pension benefit adjustment Total other comprehensive income (loss) Three Months Ended March 31, 2018 Pretax change before reclassifications $ (61,483 ) $ (3,752 ) $ — $ (65,235 ) Reclassifications out of AOCI 569 — 160 729 Tax effect 14,118 — (40 ) 14,078 Total other comprehensive income (loss), net of tax $ (46,796 ) $ (3,752 ) $ 120 $ (50,428 ) Three Months Ended March 31, 2017 Pretax change before reclassifications $ 39,624 $ 3,434 $ — $ 43,058 Reclassifications out of AOCI 8 — 5,722 5,730 Tax effect (14,181 ) — (2,189 ) (16,370 ) Total other comprehensive income (loss), net of tax $ 25,451 $ 3,434 $ 3,533 $ 32,418
Reclassifications out of Accumulated Other Comprehensive Income (Loss)	The following table presents the effects of the reclassifications out of AOCI on the respective line items in the condensed consolidated statements of income: (in thousands) Amounts reclassified from AOCI Affected line items in the condensed consolidated statements of income Three Months Ended March 31, 2018 2017 Unrealized gains (losses) on securities: Net realized gains (losses) on sales of securities (1) $ (569 ) $ (8 ) Net realized investment losses Pretax total $ (569 ) $ (8 ) Tax effect $ 132 $ 3 Pension benefit adjustment (2): Amortization of net actuarial loss $ (1,205 ) $ (6,933 ) Other operating expenses Amortization of prior service credit 1,045 1,211 Other operating expenses Pretax total $ (160 ) $ (5,722 ) Tax effect $ 40 $ 2,189 (1) For the three months ended March 31, 2018, net realized losses of $0.6 million related to sales of debt securities classified as available-for-sale. For the three months ended March 31, 2017, net realized losses of $8 thousand related to sales of debt and equity securities classified as available-for-sale. (2) These components of AOCI are components of net periodic cost. See Note 10 Employee Benefit Plans for additional details.

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Schedule of Selected Financial Information	Selected financial information about the Company’s operations, by segment, is as follows: For the three months ended March 31, 2018: (in thousands) Revenues Income (loss) Depreciation Capital Title Insurance and Services $ 1,185,467 $ 102,384 $ 28,117 $ 21,070 Specialty Insurance 113,384 9,898 1,592 2,531 Corporate (1,182 ) (19,217 ) 38 — Eliminations (281 ) — — — $ 1,297,388 $ 93,065 $ 29,747 $ 23,601 (in thousands) Direct Agent Information Net Net realized Total Title Insurance and Services $ 434,152 $ 527,714 $ 186,023 $ 41,401 $ (3,823 ) $ 1,185,467 Specialty Insurance 109,726 — 2,901 2,588 (1,831 ) 113,384 $ 543,878 $ 527,714 $ 188,924 $ 43,989 $ (5,654 ) $ 1,298,851 For the three months ended March 31, 2017: (in thousands) Revenues Income (loss) Depreciation Capital Title Insurance and Services $ 1,202,948 $ 98,245 $ 28,552 $ 30,393 Specialty Insurance 110,265 10,039 1,551 1,173 Corporate 4,117 (24,404 ) 44 — Eliminations (287 ) — — — $ 1,317,043 $ 83,880 $ 30,147 $ 31,566 (in thousands) Direct Agent Information Net Net realized Total Title Insurance and Services $ 421,959 $ 574,582 $ 180,035 $ 26,616 $ (244 ) $ 1,202,948 Specialty Insurance 105,050 — 2,739 2,329 147 110,265 $ 527,009 $ 574,582 $ 182,774 $ 28,945 $ (97 ) $ 1,313,213

Basis of Condensed Consolidat35

Basis of Condensed Consolidated Financial Statements (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounting Standards Update 2017-07 | Other Operating Expenses
Basis Of Condensed Consolidated Financial Statements [Line Items]
Prior period reclassification of non-service cost components from Personnel costs to Other operating expenses		$ 8,000
Accounting Standards Update 2016-01 | Retained Earnings
Basis Of Condensed Consolidated Financial Statements [Line Items]
Cumulative-effect adjustment to retained earnings	$ 40,550

Adoption of Revenue Guidance (N

Adoption of Revenue Guidance (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2018
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Performance obligation contract original term	The performance obligation is part of a contract that has an original duration of one year or less
Expected term of delivery of product or service and customer payment	The Company expects the period between delivery of the product or service and customer payment to be one year or less.
Maximum
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Remaining contract term	3 years

Escrow Deposits, Like-Kind Ex37

Escrow Deposits, Like-Kind Exchange Deposits and Trust Assets (Narrative) (Detail) - USD ($) $ in Billions	Mar. 31, 2018	Dec. 31, 2017
Other Assets [Line Items]
Escrow deposits	$ 7.7	$ 7.5
Like-kind exchange funds	2.5	2.6
First American Trust
Other Assets [Line Items]
Escrow deposits	3	2.9
Assets held-in-trust	$ 3.8	$ 3.7

Debt and Equity Securities (Inv

Debt and Equity Securities (Investments in Debt Securities, Classified as Available-For-Sale) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	$ 4,992,701	$ 4,750,362
Debt Securities, Gross unrealized gains	16,515	35,015
Debt Securities, Gross unrealized losses	(75,106)	(32,693)
Debt securities, Estimated fair value	4,934,110	4,752,684
U.S. Treasury Bonds
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	189,322	173,049
Debt Securities, Gross unrealized gains	602	2,199
Debt Securities, Gross unrealized losses	(3,146)	(1,250)
Debt securities, Estimated fair value	186,778	173,998
Municipal Bonds
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	1,104,512	1,031,146
Debt Securities, Gross unrealized gains	6,013	12,185
Debt Securities, Gross unrealized losses	(18,648)	(7,394)
Debt securities, Estimated fair value	1,091,877	1,035,937
Foreign Government Bonds
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	155,001	170,220
Debt Securities, Gross unrealized gains	176	489
Debt Securities, Gross unrealized losses	(2,151)	(1,221)
Debt securities, Estimated fair value	153,026	169,488
Governmental Agency Bonds
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	223,473	212,731
Debt Securities, Gross unrealized gains	680	1,061
Debt Securities, Gross unrealized losses	(4,471)	(2,322)
Debt securities, Estimated fair value	219,682	211,470
Governmental Agency Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	2,325,348	2,172,377
Debt Securities, Gross unrealized gains	2,692	3,168
Debt Securities, Gross unrealized losses	(33,744)	(16,588)
Debt securities, Estimated fair value	2,294,296	2,158,957
U.S. Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	731,649	734,409
Debt Securities, Gross unrealized gains	4,721	11,768
Debt Securities, Gross unrealized losses	(10,054)	(2,962)
Debt securities, Estimated fair value	726,316	743,215
Foreign Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	263,396	256,430
Debt Securities, Gross unrealized gains	1,631	4,145
Debt Securities, Gross unrealized losses	(2,892)	(956)
Debt securities, Estimated fair value	$ 262,135	$ 259,619

Debt and Equity Securities (Nar

Debt and Equity Securities (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Schedule Of Debt and Equity Securities [Line Items]
Realized gains on sales of debt securities	$ 700	$ 1,600
Realized losses on sales of debt securities	1,200	3,200
Proceeds from sale of debt securities	155,700	154,400
Realized gains on sales of equity securities	1,100	1,800
Realized losses on sales of equity securities	7,000	$ 100
Unrealized gains on equity securities	46
Unrealized losses on equity securities	7,000
Debt securities, Estimated fair value	4,934,110		$ 4,752,684
Estimated fair value of debt securities, Unrealized loss position	3,511,329		$ 2,643,947
Bank Loans
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	164,700
Estimated fair value of debt securities, Unrealized loss position	26,600
Emerging Market Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	83,800
Estimated fair value of debt securities, Unrealized loss position	57,200
Non-Investment Grade
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	284,695
Estimated fair value of debt securities, Unrealized loss position	92,736
Non-Investment Grade | Bank Loans
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	152,800
Estimated fair value of debt securities, Unrealized loss position	26,300
Non-Investment Grade | High Yield Corporate Debt Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	101,200
Estimated fair value of debt securities, Unrealized loss position	58,100
Non-Investment Grade | Emerging Market Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	10,600
Estimated fair value of debt securities, Unrealized loss position	$ 6,500

Debt and Equity Securities (Gro

Debt and Equity Securities (Gross Unrealized Losses on Investments in Debt Securities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	$ 2,319,381	$ 1,437,759
Unrealized losses, Less than 12 months	(36,669)	(10,863)
Estimated fair value, 12 months or longer	1,191,948	1,206,188
Unrealized losses, 12 months or longer	(38,437)	(21,830)
Estimated fair value, Total	3,511,329	2,643,947
Unrealized losses, Total	(75,106)	(32,693)
U.S. Treasury Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	109,820	78,605
Unrealized losses, Less than 12 months	(2,009)	(511)
Estimated fair value, 12 months or longer	38,554	37,498
Unrealized losses, 12 months or longer	(1,137)	(739)
Estimated fair value, Total	148,374	116,103
Unrealized losses, Total	(3,146)	(1,250)
Municipal Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	503,940	279,292
Unrealized losses, Less than 12 months	(6,441)	(1,714)
Estimated fair value, 12 months or longer	217,817	226,895
Unrealized losses, 12 months or longer	(12,207)	(5,680)
Estimated fair value, Total	721,757	506,187
Unrealized losses, Total	(18,648)	(7,394)
Foreign Government Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	93,606	98,942
Unrealized losses, Less than 12 months	(1,397)	(972)
Estimated fair value, 12 months or longer	13,963	6,678
Unrealized losses, 12 months or longer	(754)	(249)
Estimated fair value, Total	107,569	105,620
Unrealized losses, Total	(2,151)	(1,221)
Governmental Agency Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	97,136	55,707
Unrealized losses, Less than 12 months	(1,542)	(409)
Estimated fair value, 12 months or longer	93,289	93,737
Unrealized losses, 12 months or longer	(2,929)	(1,913)
Estimated fair value, Total	190,425	149,444
Unrealized losses, Total	(4,471)	(2,322)
Governmental Agency Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	976,932	671,871
Unrealized losses, Less than 12 months	(15,420)	(4,868)
Estimated fair value, 12 months or longer	766,336	774,959
Unrealized losses, 12 months or longer	(18,324)	(11,720)
Estimated fair value, Total	1,743,268	1,446,830
Unrealized losses, Total	(33,744)	(16,588)
U.S. Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	383,413	171,817
Unrealized losses, Less than 12 months	(7,256)	(1,568)
Estimated fair value, 12 months or longer	56,030	60,724
Unrealized losses, 12 months or longer	(2,798)	(1,394)
Estimated fair value, Total	439,443	232,541
Unrealized losses, Total	(10,054)	(2,962)
Foreign Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value, Less than 12 months	154,534	81,525
Unrealized losses, Less than 12 months	(2,604)	(821)
Estimated fair value, 12 months or longer	5,959	5,697
Unrealized losses, 12 months or longer	(288)	(135)
Estimated fair value, Total	160,493	87,222
Unrealized losses, Total	$ (2,892)	$ (956)

Debt and Equity Securities (I41

Debt and Equity Securities (Investments in Debt Securities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Amortized cost	$ 4,992,701	$ 4,750,362
Debt securities, Estimated fair value	4,934,110	4,752,684
U.S. Treasury Bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	37,530
Amortized cost, Due after one through five years	55,856
Amortized cost, Due after five through ten years	44,730
Amortized cost, Due after ten years	51,206
Debt Securities, Amortized cost	189,322	173,049
Estimated fair value, Due in one year or less	37,388
Estimated fair value, Due after one through five years	54,931
Estimated fair value, Due after five through ten years	43,790
Estimated fair value, Due after ten years	50,669
Debt securities, Estimated fair value	186,778	173,998
Municipal Bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	70,776
Amortized cost, Due after one through five years	293,994
Amortized cost, Due after five through ten years	272,117
Amortized cost, Due after ten years	467,625
Debt Securities, Amortized cost	1,104,512	1,031,146
Estimated fair value, Due in one year or less	70,767
Estimated fair value, Due after one through five years	293,665
Estimated fair value, Due after five through ten years	269,827
Estimated fair value, Due after ten years	457,618
Debt securities, Estimated fair value	1,091,877	1,035,937
Foreign Government Bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	13,139
Amortized cost, Due after one through five years	113,211
Amortized cost, Due after five through ten years	12,517
Amortized cost, Due after ten years	16,134
Debt Securities, Amortized cost	155,001	170,220
Estimated fair value, Due in one year or less	13,143
Estimated fair value, Due after one through five years	112,212
Estimated fair value, Due after five through ten years	12,430
Estimated fair value, Due after ten years	15,241
Debt securities, Estimated fair value	153,026	169,488
Governmental Agency Bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	31,347
Amortized cost, Due after one through five years	78,487
Amortized cost, Due after five through ten years	65,136
Amortized cost, Due after ten years	48,503
Debt Securities, Amortized cost	223,473	212,731
Estimated fair value, Due in one year or less	31,210
Estimated fair value, Due after one through five years	76,941
Estimated fair value, Due after five through ten years	64,331
Estimated fair value, Due after ten years	47,200
Debt securities, Estimated fair value	219,682	211,470
U.S. Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	21,390
Amortized cost, Due after one through five years	321,444
Amortized cost, Due after five through ten years	315,735
Amortized cost, Due after ten years	73,080
Debt Securities, Amortized cost	731,649	734,409
Estimated fair value, Due in one year or less	21,431
Estimated fair value, Due after one through five years	318,706
Estimated fair value, Due after five through ten years	312,509
Estimated fair value, Due after ten years	73,670
Debt securities, Estimated fair value	726,316	743,215
Foreign Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	18,674
Amortized cost, Due after one through five years	137,519
Amortized cost, Due after five through ten years	94,093
Amortized cost, Due after ten years	13,110
Debt Securities, Amortized cost	263,396	256,430
Estimated fair value, Due in one year or less	18,701
Estimated fair value, Due after one through five years	136,902
Estimated fair value, Due after five through ten years	93,212
Estimated fair value, Due after ten years	13,320
Debt securities, Estimated fair value	262,135	$ 259,619
Debt Securities Excluding Mortgage Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	192,856
Amortized cost, Due after one through five years	1,000,511
Amortized cost, Due after five through ten years	804,328
Amortized cost, Due after ten years	669,658
Debt Securities, Amortized cost	2,667,353
Estimated fair value, Due in one year or less	192,640
Estimated fair value, Due after one through five years	993,357
Estimated fair value, Due after five through ten years	796,099
Estimated fair value, Due after ten years	657,718
Debt securities, Estimated fair value	2,639,814
Total Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	2,325,348
Estimated fair value	$ 2,294,296

Debt and Equity Securities (I42

Debt and Equity Securities (Investments in Equity Securities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt And Equity Securities F V N I [Line Items]
Equity securities, Cost	$ 424,325	$ 413,672
Equity securities, Estimated fair value	459,477	466,516
Preferred stocks
Debt And Equity Securities F V N I [Line Items]
Equity securities, Cost	18,692	19,233
Equity securities, Estimated fair value	18,238	18,990
Common stocks
Debt And Equity Securities F V N I [Line Items]
Equity securities, Cost	405,633	394,439
Equity securities, Estimated fair value	$ 441,239	$ 447,526

Debt and Equity Securities (Com

Debt and Equity Securities (Composition of Investment Portfolio by Credit Rating Agencies) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 4,934,110	$ 4,752,684
Equity securities, Estimated fair value	459,477	466,516
Estimated fair value, Total	$ 4,952,348
Percentage of debt securities by credit rating agencies	100.00%
Percentage of investment portfolio by credit rating agencies	100.00%
U.S. Treasury Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 186,778	173,998
Percentage of debt securities by credit rating agencies	100.00%
Municipal Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 1,091,877	1,035,937
Percentage of debt securities by credit rating agencies	100.00%
Foreign Government Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 153,026	169,488
Percentage of debt securities by credit rating agencies	100.00%
Governmental Agency Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 219,682	211,470
Percentage of debt securities by credit rating agencies	100.00%
Governmental Agency Mortgage-Backed Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 2,294,296	2,158,957
Percentage of debt securities by credit rating agencies	100.00%
U.S. Corporate Debt Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 726,316	743,215
Percentage of debt securities by credit rating agencies	100.00%
Foreign Corporate Debt Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 262,135	259,619
Percentage of debt securities by credit rating agencies	100.00%
Preferred stocks
Schedule Of Debt and Equity Securities [Line Items]
Equity securities, Estimated fair value	$ 18,238	$ 18,990
Percentage of equity securities by credit rating agencies	100.00%
Investment Grade | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 4,217,755
Estimated fair value, Total	$ 4,217,755
Percentage of debt securities by credit rating agencies	85.50%
Percentage of investment portfolio by credit rating agencies	85.20%
Investment Grade | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 431,660
Estimated fair value, Total	$ 445,029
Percentage of debt securities by credit rating agencies	8.70%
Percentage of investment portfolio by credit rating agencies	9.00%
Investment Grade | U.S. Treasury Bonds | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 186,778
Percentage of debt securities by credit rating agencies	100.00%
Investment Grade | U.S. Treasury Bonds | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Investment Grade | Municipal Bonds | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 1,012,141
Percentage of debt securities by credit rating agencies	92.70%
Investment Grade | Municipal Bonds | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 59,627
Percentage of debt securities by credit rating agencies	5.50%
Investment Grade | Foreign Government Bonds | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 123,117
Percentage of debt securities by credit rating agencies	80.50%
Investment Grade | Foreign Government Bonds | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 24,484
Percentage of debt securities by credit rating agencies	16.00%
Investment Grade | Governmental Agency Bonds | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 219,682
Percentage of debt securities by credit rating agencies	100.00%
Investment Grade | Governmental Agency Bonds | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Investment Grade | Governmental Agency Mortgage-Backed Securities | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 2,294,296
Percentage of debt securities by credit rating agencies	100.00%
Investment Grade | Governmental Agency Mortgage-Backed Securities | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Investment Grade | U.S. Corporate Debt Securities | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 259,578
Percentage of debt securities by credit rating agencies	35.70%
Investment Grade | U.S. Corporate Debt Securities | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 239,276
Percentage of debt securities by credit rating agencies	32.90%
Investment Grade | Foreign Corporate Debt Securities | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 122,163
Percentage of debt securities by credit rating agencies	46.60%
Investment Grade | Foreign Corporate Debt Securities | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 108,273
Percentage of debt securities by credit rating agencies	41.30%
Investment Grade | Preferred stocks | A- or Higher
Schedule Of Debt and Equity Securities [Line Items]
Equity securities, Estimated fair value	$ 0
Percentage of equity securities by credit rating agencies	0.00%
Investment Grade | Preferred stocks | BBB+ to BBB-
Schedule Of Debt and Equity Securities [Line Items]
Equity securities, Estimated fair value	$ 13,369
Percentage of equity securities by credit rating agencies	73.30%
Non-Investment Grade
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 284,695
Estimated fair value, Total	$ 289,564
Percentage of debt securities by credit rating agencies	5.80%
Percentage of investment portfolio by credit rating agencies	5.80%
Non-Investment Grade | U.S. Treasury Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Non-Investment Grade | Municipal Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 20,109
Percentage of debt securities by credit rating agencies	1.80%
Non-Investment Grade | Foreign Government Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 5,425
Percentage of debt securities by credit rating agencies	3.50%
Non-Investment Grade | Governmental Agency Bonds
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Non-Investment Grade | Governmental Agency Mortgage-Backed Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 0
Percentage of debt securities by credit rating agencies	0.00%
Non-Investment Grade | U.S. Corporate Debt Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 227,462
Percentage of debt securities by credit rating agencies	31.40%
Non-Investment Grade | Foreign Corporate Debt Securities
Schedule Of Debt and Equity Securities [Line Items]
Debt securities, Estimated fair value	$ 31,699
Percentage of debt securities by credit rating agencies	12.10%
Non-Investment Grade | Preferred stocks
Schedule Of Debt and Equity Securities [Line Items]
Equity securities, Estimated fair value	$ 4,869
Percentage of equity securities by credit rating agencies	26.70%

Debt and Equity Securities (C44

Debt and Equity Securities (Composition of Debt Securities Portfolio in Unrealized Loss Position by Credit Rating Agencies) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 3,511,329	$ 2,643,947
Percentage of debt securities in unrealized loss position	100.00%
Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 3,116,465
Percentage of debt securities in unrealized loss position	88.80%
Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 302,128
Percentage of debt securities in unrealized loss position	8.60%
Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 92,736
Percentage of debt securities in unrealized loss position	2.60%
U.S. Treasury Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 148,374	116,103
Percentage of debt securities in unrealized loss position	100.00%
U.S. Treasury Bonds | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 148,374
Percentage of debt securities in unrealized loss position	100.00%
U.S. Treasury Bonds | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
U.S. Treasury Bonds | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
Municipal Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 721,757	506,187
Percentage of debt securities in unrealized loss position	100.00%
Municipal Bonds | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 683,529
Percentage of debt securities in unrealized loss position	94.70%
Municipal Bonds | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 36,359
Percentage of debt securities in unrealized loss position	5.00%
Municipal Bonds | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 1,869
Percentage of debt securities in unrealized loss position	0.30%
Foreign Government Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 107,569	105,620
Percentage of debt securities in unrealized loss position	100.00%
Foreign Government Bonds | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 80,575
Percentage of debt securities in unrealized loss position	74.90%
Foreign Government Bonds | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 23,833
Percentage of debt securities in unrealized loss position	22.20%
Foreign Government Bonds | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 3,161
Percentage of debt securities in unrealized loss position	2.90%
Governmental Agency Bonds
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 190,425	149,444
Percentage of debt securities in unrealized loss position	100.00%
Governmental Agency Bonds | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 190,425
Percentage of debt securities in unrealized loss position	100.00%
Governmental Agency Bonds | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
Governmental Agency Bonds | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
Governmental Agency Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 1,743,268	1,446,830
Percentage of debt securities in unrealized loss position	100.00%
Governmental Agency Mortgage-Backed Securities | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 1,743,268
Percentage of debt securities in unrealized loss position	100.00%
Governmental Agency Mortgage-Backed Securities | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
Governmental Agency Mortgage-Backed Securities | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 0
Percentage of debt securities in unrealized loss position	0.00%
U.S. Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 439,443	232,541
Percentage of debt securities in unrealized loss position	100.00%
U.S. Corporate Debt Securities | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 195,799
Percentage of debt securities in unrealized loss position	44.60%
U.S. Corporate Debt Securities | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 172,175
Percentage of debt securities in unrealized loss position	39.20%
U.S. Corporate Debt Securities | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 71,469
Percentage of debt securities in unrealized loss position	16.20%
Foreign Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 160,493	$ 87,222
Percentage of debt securities in unrealized loss position	100.00%
Foreign Corporate Debt Securities | Investment Grade | A- or Higher
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 74,495
Percentage of debt securities in unrealized loss position	46.40%
Foreign Corporate Debt Securities | Investment Grade | BBB+ to BBB-
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 69,761
Percentage of debt securities in unrealized loss position	43.50%
Foreign Corporate Debt Securities | Non-Investment Grade
Schedule Of Available For Sale Securities [Line Items]
Estimated fair value of debt securities, Unrealized loss position	$ 16,237
Percentage of debt securities in unrealized loss position	10.10%

Goodwill (Carrying Amount of Go

Goodwill (Carrying Amount of Goodwill by Operating Segment) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Goodwill [Line Items]
Beginning balance	$ 1,113,005
Acquisitions	21,614
Foreign currency translation	(1,063)
Ending balance	1,133,556
Title Insurance and Services
Goodwill [Line Items]
Beginning balance	1,066,240
Acquisitions	21,614
Foreign currency translation	(1,063)
Ending balance	1,086,791
Specialty Insurance
Goodwill [Line Items]
Beginning balance	46,765
Acquisitions	0
Foreign currency translation	0
Ending balance	$ 46,765

Goodwill (Narrative) (Detail)

Goodwill (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2018ReportingUnit
Goodwill And Intangible Assets Disclosure [Abstract]
Number of reporting units	4

Other Intangible Assets (Schedu

Other Intangible Assets (Schedule of Other Intangible Assets) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Intangible Assets Net Excluding Goodwill [Abstract]
Customer relationships	$ 97,300	$ 106,086
Noncompete agreements	11,139	11,509
Trademarks	9,203	9,229
Internal-use software licenses	22,534	28,956
Patents	2,840	2,840
Finite-lived intangible assets, gross	143,016	158,620
Accumulated amortization	(64,052)	(75,591)
Finite-lived intangible assets, net	78,964	83,029
Licenses	16,884	16,884
Other intangibles assets, net	$ 95,848	$ 99,913

Other Intangible Assets (Narrat

Other Intangible Assets (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Intangible Assets Net Excluding Goodwill [Abstract]
Amortization expense	$ 7	$ 6.2

Other Intangible Assets (Estima

Other Intangible Assets (Estimated Amortization Expense for Finite-Lived Intangible Assets) (Detail) $ in Thousands	Mar. 31, 2018USD ($)
Intangible Assets Net Excluding Goodwill [Abstract]
Remainder of 2018	$ 16,144
2,019	15,401
2,020	10,638
2,021	7,680
2,022	7,031
2,023	$ 5,864

Reserve for Known and Incurre50

Reserve for Known and Incurred but Not Reported Claims (Activity in Reserve for Known and Incurred but Not Reported Claims) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at beginning of period	$ 1,028,933	$ 1,025,863
Provision related to current year	90,970	99,408
Provision related to prior years	9,610	2,980
Total Provision	100,580	102,388
Payments, net of recoveries, related to: Current year	32,285	30,610
Payments, net of recoveries, related to: Prior years	72,329	83,404
Total Payments, net of recoveries	104,614	114,014
Other	(3,553)	(772)
Balance at end of period	$ 1,021,346	$ 1,013,465

Reserve for Known and Incurre51

Reserve for Known and Incurred but Not Reported Claims (Narrative) (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Insurance [Abstract]
Provision for title loss, percentage of title premiums and escrow fees	4.00%	4.00%
Ultimate loss rate	4.00%	4.00%
Estimated increase in loss reserve for prior policy years	$ 0	$ 0

Reserve for Known and Incurre52

Reserve for Known and Incurred but Not Reported Claims (Summary of Loss Reserves) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Insurance [Abstract]
Known title claims, amount	$ 88,298	$ 83,094
Incurred but not reported claims, amount	870,421	875,724
Total title claims, amount	958,719	958,818
Non-title claims, amount	62,627	70,115
Total loss reserves, amount	$ 1,021,346	$ 1,028,933	$ 1,013,465	$ 1,025,863
Known title claims, percent	8.70%	8.10%
Incurred but not reported claims, percent	85.20%	85.10%
Total title claims, percent	93.90%	93.20%
Non-title claims, percent	6.10%	6.80%
Total loss reserves, percent	100.00%	100.00%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Effective income tax rates	18.20%	30.80%
Statutory federal tax rate	21.00%		35.00%
Net payable related to spin-off tax liabilities	$ 15.2		$ 15
Liability for income taxes associated with uncertain tax positions	12.8		12.8
Offsetting tax benefits related to uncertain tax positions	3.7		3.7
Uncertain tax positions, net	9.1		9.1
Accrued interest and penalties on uncertain tax positions	5.4		5.3
Other tax benefits related to interest and penalties of uncertain tax positions	$ 1.4		$ 1.4
Unrecognized tax positions increase decrease, months	It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions may significantly increase or decrease within the next 12 months. Any such change may be the result of ongoing audits or the expiration of federal and state statutes of limitations for the assessment of taxes.

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of Earnings Per Share) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income attributable to the Company	$ 76,227	$ 58,282
Basic weighted-average shares	112,232	111,179
Effect of dilutive employee stock options and restricted stock units (“RSUs”)	803	643
Diluted weighted-average shares	113,035	111,822
Basic	$ 0.68	$ 0.52
Diluted	$ 0.67	$ 0.52

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
RSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from the weighted-average diluted common shares outstanding	0	131
Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from the weighted-average diluted common shares outstanding	0	0

Employee Benefit Plans (Net Per

Employee Benefit Plans (Net Periodic Cost) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]
Service costs	$ 130	$ 184
Interest costs	2,018	4,641
Expected return on plan assets		(2,370)
Amortization of net actuarial loss	1,205	6,933
Amortization of prior service credit	(1,045)	(1,211)
Net periodic cost	$ 2,308	$ 8,177

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Accounting Standards Update 2017-07 | Other Operating Expenses
Defined Benefit Plan Disclosure [Line Items]
Prior period reclassification of non-service cost components from Personnel costs to Other operating expenses	$ 8

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value of Assets Measured on Recurring Basis) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	$ 4,934,110	$ 4,752,684
Equity securities, estimated fair value	459,477	466,516
Debt and Equity securities, estimated fair value	5,393,587	5,219,200
Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Equity securities, estimated fair value	459,477	466,516
Debt and Equity securities, estimated fair value	459,477	466,516
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	4,916,480	4,708,150
Equity securities, estimated fair value	0	0
Debt and Equity securities, estimated fair value	4,916,480	4,708,150
Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	17,630	44,534
Equity securities, estimated fair value	0	0
Debt and Equity securities, estimated fair value	17,630	44,534
U.S. Treasury Bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	186,778	173,998
U.S. Treasury Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
U.S. Treasury Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	186,778	173,998
U.S. Treasury Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	1,091,877	1,035,937
Municipal Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Municipal Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	1,091,877	1,035,937
Municipal Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Foreign Government Bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	153,026	169,488
Foreign Government Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Foreign Government Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	153,026	169,488
Foreign Government Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Governmental Agency Bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	219,682	211,470
Governmental Agency Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Governmental Agency Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	219,682	211,470
Governmental Agency Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Governmental Agency Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	2,294,296	2,158,957
Governmental Agency Mortgage-Backed Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Governmental Agency Mortgage-Backed Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	2,294,296	2,158,957
Governmental Agency Mortgage-Backed Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
U.S. Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	726,316	743,215
U.S. Corporate Debt Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
U.S. Corporate Debt Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	710,198	700,347
U.S. Corporate Debt Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	16,118	42,868
Foreign Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	262,135	259,619
Foreign Corporate Debt Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	0	0
Foreign Corporate Debt Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	260,623	257,953
Foreign Corporate Debt Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Debt securities, estimated fair value	1,512	1,666
Preferred stocks
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	18,238	18,990
Preferred stocks | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	18,238	18,990
Preferred stocks | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	0	0
Preferred stocks | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	0	0
Common Stock
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	441,239	447,526
Common Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	441,239	447,526
Common Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	0	0
Common Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract]
Equity securities, estimated fair value	$ 0	$ 0

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Detail) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair value assets, Level 1 to Level 2 transfers amount	$ 0	$ 0
Fair value assets, Level 2 to Level 1 transfers amount	$ 0	$ 0

Fair Value Measurements (Summar

Fair Value Measurements (Summary of Changes in Fair Value of Level 3 Assets Measured on Recurring Basis) (Detail) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 44,534	$ 52,933
Transfers into Level 3	1,580	1,939
Transfers out of Level 3	(29,439)	(36,659)
Included in earnings	40	34
Included in other comprehensive income (loss)	(54)	(131)
Purchases	6,319	5,181
Sales	(2,575)	(977)
Settlements	(2,775)	(6,024)
Fair value at end of period	17,630	16,296
U.S. Corporate Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	42,868	46,665
Transfers into Level 3	1,580	1,715
Transfers out of Level 3	(28,523)	(33,174)
Included in earnings	38	29
Included in other comprehensive income (loss)	(64)	(114)
Purchases	4,823	3,958
Sales	(2,352)	(722)
Settlements	(2,252)	(4,923)
Fair value at end of period	16,118	13,434
Foreign Corporate Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	1,666	6,268
Transfers into Level 3	0	224
Transfers out of Level 3	(916)	(3,485)
Included in earnings	2	5
Included in other comprehensive income (loss)	10	(17)
Purchases	1,496	1,223
Sales	(223)	(255)
Settlements	(523)	(1,101)
Fair value at end of period	$ 1,512	$ 2,862

Fair Value Measurements (Carryi

Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments Not Measured at Fair Value) (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Carrying Amount
Assets:
Cash and cash equivalents	$ 1,176,618	$ 1,387,226
Deposits with banks	39,215	41,335
Notes receivable, net	6,651	7,066
Liabilities:
Deposits	3,161,706	3,070,566
Notes and contracts payable	731,454	732,810
Estimated Fair Value
Assets:
Cash and cash equivalents	1,176,618	1,387,226
Deposits with banks	39,033	41,259
Notes receivable, net	6,316	6,798
Liabilities:
Deposits	3,161,706	3,070,566
Notes and contracts payable	742,937	755,670
Estimated Fair Value | Level 1
Assets:
Cash and cash equivalents	1,176,618	1,387,226
Deposits with banks	5,542	6,846
Notes receivable, net	0	0
Liabilities:
Deposits	3,161,706	3,070,566
Notes and contracts payable	0	0
Estimated Fair Value | Level 2
Assets:
Cash and cash equivalents	0	0
Deposits with banks	33,491	34,413
Notes receivable, net	0	0
Liabilities:
Deposits	0	0
Notes and contracts payable	739,782	751,827
Estimated Fair Value | Level 3
Assets:
Cash and cash equivalents	0	0
Deposits with banks	0	0
Notes receivable, net	6,316	6,798
Liabilities:
Deposits	0	0
Notes and contracts payable	$ 3,155	$ 3,843

Share-Based Compensation (Expen

Share-Based Compensation (Expenses Associated with Share-Based Compensation Plans) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation	$ 19,509	$ 17,032
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation	18,526	16,014
Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation	0	67
Employee stock purchase plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation	$ 983	$ 951

Share-Based Compensation (Summa

Share-Based Compensation (Summary of RSU Activity) (Detail) - RSUs shares in Thousands	3 Months Ended
	Mar. 31, 2018$ / sharesshares
RSU, Shares
Unvested at December 31, 2017 | shares	1,411
Granted during 2018 | shares	656
Vested during 2018 | shares	(751)
Forfeited during 2018 | shares	(6)
Unvested at March 31, 2018 | shares	1,310
RSU, Weighted-average grant-date fair value
Unvested at December 31, 2017 | $ / shares	$ 36.66
Granted during 2018 | $ / shares	56.75
Vested during 2018 | $ / shares	41.28
Forfeited during 2018 | $ / shares	40.10
Unvested at March 31, 2018 | $ / shares	$ 44.04

Accumulated Other Comprehensi64

Accumulated Other Comprehensive Income (Loss) (AOCI) (Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) including non-controlling interest, Beginning Balance		$ (67,489)
Change in unrealized gains (losses) on debt securities		(60,914)
Change in foreign currency translation adjustment		(3,752)
Amortization of net actuarial loss		1,205
Amortization of prior service credit		(1,045)
Tax effect		14,078	$ (16,370)
Accumulated other comprehensive income (loss) including non-controlling interest, Ending Balance		(158,467)	(67,489)
Allocated to the Company		(158,468)	(67,509)
Allocated to noncontrolling interests		1
Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) including non-controlling interest, Beginning Balance		36,803
Cumulative-effect adjustment, net of taxes	[1]	(40,550)
Change in unrealized gains (losses) on debt securities		(60,914)
Tax effect		14,118	(14,181)
Accumulated other comprehensive income (loss) including non-controlling interest, Ending Balance		(50,543)	36,803
Allocated to the Company		(50,544)
Allocated to noncontrolling interests		1
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) including non-controlling interest, Beginning Balance		(38,832)
Change in foreign currency translation adjustment		(3,752)
Tax effect		0	0
Accumulated other comprehensive income (loss) including non-controlling interest, Ending Balance		(42,584)	(38,832)
Allocated to the Company		(42,584)
Allocated to noncontrolling interests		0
Pension Benefit Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) including non-controlling interest, Beginning Balance		(65,460)
Amortization of net actuarial loss		1,205
Amortization of prior service credit		(1,045)
Tax effect		(40)	(2,189)
Accumulated other comprehensive income (loss) including non-controlling interest, Ending Balance		(65,340)	$ (65,460)
Allocated to the Company		(65,340)
Allocated to noncontrolling interests		0
Accumulated Other Comprehensive Income Loss | Accounting Standards Update 2016-01
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Cumulative-effect adjustment, net of taxes	[1]	$ (40,550)
[1]	Upon adoption of new accounting guidance on January 1, 2018, the Company recognized a cumulative-effect adjustment to retained earnings for cumulative net unrealized gains related to its investments in equity securities. See Note 1 Basis of Condensed Consolidated Financial Statements for further discussion of the new guidance.

Accumulated Other Comprehensi65

Accumulated Other Comprehensive Income (Loss) (Other Comprehensive Income (Loss) Reclassification Adjustments) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Pretax change before reclassifications	$ (65,235)	$ 43,058
Reclassifications out of AOCI	729	5,730
Tax effect	14,078	(16,370)
Total other comprehensive (loss) income, net of tax	(50,428)	32,418	$ 32,418
Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Pretax change before reclassifications	(61,483)	39,624
Reclassifications out of AOCI	569	8	$ 8
Tax effect	14,118	(14,181)
Total other comprehensive (loss) income, net of tax	(46,796)	25,451
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Pretax change before reclassifications	(3,752)	3,434
Reclassifications out of AOCI	0	0
Tax effect	0	0
Total other comprehensive (loss) income, net of tax	(3,752)	3,434
Pension Benefit Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Pretax change before reclassifications	0	0
Reclassifications out of AOCI	160	5,722
Tax effect	(40)	(2,189)
Total other comprehensive (loss) income, net of tax	$ 120	$ 3,533

Accumulated Other Comprehensi66

Accumulated Other Comprehensive Income (Loss) (Reclassifications Out of AOCI) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications out of AOCI		$ (729)	$ (5,730)
Amortization of net actuarial loss		(1,205)
Amortization of prior service credit		1,045
Unrealized Gains (Losses) on Securities
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net realized gains (losses) on sales of securities	[1]	(569)		$ (8)
Reclassifications out of AOCI		(569)	$ (8)	(8)
Tax effect		132		3
Pension Benefit Adjustment
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Reclassifications out of AOCI	[2]	(160)		(5,722)
Tax effect	[2]	40		2,189
Amortization of net actuarial loss	[2]	(1,205)		(6,933)
Amortization of prior service credit	[2]	$ 1,045		$ 1,211
[1]	For the three months ended March 31, 2018, net realized losses of $0.6 million related to sales of debt securities classified as available-for-sale. For the three months ended March 31, 2017, net realized losses of $8 thousand related to sales of debt and equity securities classified as available-for-sale.
[2]	These components of AOCI are components of net periodic cost. See Note 10 Employee Benefit Plans for additional details.

Accumulated Other Comprehensi67

Accumulated Other Comprehensive Income (Loss) (Reclassifications Out of AOCI) (Parenthetical) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Unrealized Gains (Losses) on Securities
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net realized gains (losses) of related to sales of securities classified as available-for-sale	[1]	$ (569)	$ (8)
[1]	For the three months ended March 31, 2018, net realized losses of $0.6 million related to sales of debt securities classified as available-for-sale. For the three months ended March 31, 2017, net realized losses of $8 thousand related to sales of debt and equity securities classified as available-for-sale.

Segment Information (Narrative)

Segment Information (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2018State
Segment Reporting Information [Line Items]
Number of states issues title insurance policies	49
Number of states licensed to issues property and casualty insurance policies	50
Number of states issues property and casualty policies	47
Number of states issues home warranty contracts	39
California
Segment Reporting Information [Line Items]
Policy liability percentage	63.00%

Segment Information (Schedule o

Segment Information (Schedule of Selected Financial Information) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 1,297,388	$ 1,317,043
Income (loss) before income taxes	93,065	83,880
Depreciation and amortization	29,747	30,147
Capital expenditures	23,601	31,566
Direct premiums and escrow fees	543,878	527,009
Agent premiums	527,714	574,582
Information and other	188,658	182,509
Net investment income	42,792	33,040
Net realized investment gains (losses)	(5,654)	(97)
Operating Segments
Segment Reporting Information [Line Items]
Revenues	1,298,851	1,313,213
Direct premiums and escrow fees	543,878	527,009
Agent premiums	527,714	574,582
Information and other	188,924	182,774
Net investment income	43,989	28,945
Net realized investment gains (losses)	(5,654)	(97)
Operating Segments | Title Insurance and Services
Segment Reporting Information [Line Items]
Revenues	1,185,467	1,202,948
Income (loss) before income taxes	102,384	98,245
Depreciation and amortization	28,117	28,552
Capital expenditures	21,070	30,393
Direct premiums and escrow fees	434,152	421,959
Agent premiums	527,714	574,582
Information and other	186,023	180,035
Net investment income	41,401	26,616
Net realized investment gains (losses)	(3,823)	(244)
Operating Segments | Specialty Insurance
Segment Reporting Information [Line Items]
Revenues	113,384	110,265
Income (loss) before income taxes	9,898	10,039
Depreciation and amortization	1,592	1,551
Capital expenditures	2,531	1,173
Direct premiums and escrow fees	109,726	105,050
Information and other	2,901	2,739
Net investment income	2,588	2,329
Net realized investment gains (losses)	(1,831)	147
Corporate
Segment Reporting Information [Line Items]
Revenues	(1,182)	4,117
Income (loss) before income taxes	(19,217)	(24,404)
Depreciation and amortization	38	44
Capital expenditures	0	0
Eliminations
Segment Reporting Information [Line Items]
Revenues	(281)	(287)
Income (loss) before income taxes	0	0
Depreciation and amortization	0	0
Capital expenditures	$ 0	$ 0