LPL Financial (LPLA) 10-Q 3 May 22 2022 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2022	Apr. 28, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2022
Entity File Number	001-34963
Entity Registrant Name	LPL Financial Holdings Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-3717839
Entity Address, Address Line One	4707 Executive Drive,
Entity Address, City or Town	San Diego,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92121
City Area Code	(800)
Local Phone Number	877-7210
Title of 12(b) Security	Common Stock - $0.001 par value per share
Trading Symbol	LPLA
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		79,964,708
Entity Central Index Key	0001397911
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false
Current Fiscal Year End Date	--12-31

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
REVENUES:
Advisory	$ 1,047,097	$ 722,046
Commission	585,525	557,229
Asset-based	296,401	264,706
Service and fee	112,812	96,824
Transaction and fee	46,726	44,120
Interest Income	7,745	6,518
Other	(30,613)	16,174
Total net revenues	2,065,693	1,707,617
EXPENSES:
Advisory and commission	1,374,134	1,108,899
Compensation and benefits	192,034	161,540
Promotional	87,002	54,181
Depreciation and amortization	45,454	35,499
Interest Expense, Debt	27,211	25,059
Amortization of intangible assets	21,196	17,431
Occupancy and equipment	51,112	43,584
Professional services	19,022	15,625
Brokerage, clearing and exchange	22,600	19,364
Communications and data processing	15,127	11,993
Other	37,422	24,900
Total operating expenses	1,892,314	1,542,475
Loss on extinguishment of debt	0	24,400
INCOME BEFORE PROVISION FOR INCOME TAXES	173,379	165,142
PROVISION FOR INCOME TAXES	39,635	35,522
NET INCOME	$ 133,744	$ 129,620
EARNINGS PER SHARE
Earnings per share, basic	$ 1.67	$ 1.63
Earnings per share, diluted	$ 1.64	$ 1.59
Weighted-average shares outstanding, basic	79,976	79,697
Weighted-average shares outstanding, diluted	81,572	81,622

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Cash and cash equivalents	$ 1,009,693	$ 495,246
Cash segregated under federal or other regulations	644,986	1,496,463
Restricted cash	92,393	80,655
Receivables from:
Receivables from clients, net	624,188	578,889
Receivables from brokers, dealers and clearing organizations	154,398	102,503
Advisor loans, net	970,368	963,869
Other receivables, net	587,601	581,483
Investment securities	43,709	49,192
Property and equipment, net	685,771	658,841
Operating lease assets	92,093	95,075
Goodwill	1,642,468	1,642,443
Intangible Assets, Net (Excluding Goodwill)	433,925	455,028
Deferred Income Tax Assets, Net	5,867	5,648
Other assets	883,831	886,988
Total assets	7,773,331	7,991,600
LIABILITIES:
Payables to clients	1,568,025	1,712,224
Payables to broker-dealers and clearing organizations	149,237	170,119
Accrued advisory and commission expenses payable	210,884	222,379
Long-term Debt	2,722,396	2,814,044
Accounts payable and accrued liabilities	331,333	384,025
Other Liabilities, Noncurrent	1,056,450	1,018,276
Operating lease liabilities	126,689	130,304
Finance lease liabilities	105,911	106,067
Total liabilities	6,038,325	6,321,067
STOCKHOLDERS' EQUITY:
Common stock, $0.001 par value; 600,000,000 shares authorized; 129,220,710 shares and 128,758,086 shares issued at March 31, 2022 and December 31, 2021, respectively	129	129
Additional paid-in capital	1,861,019	1,841,402
Treasury stock, at cost — 49,160,358 shares and 48,768,145 shares at March 31, 2022 and December 31, 2021, respectively	(2,569,035)	(2,498,600)
Retained earnings	2,442,893	2,327,602
Total stockholders' equity	1,735,006	1,670,533
Total liabilities and stockholders' equity	$ 7,773,331	$ 7,991,600

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Financial Condition (Unaudited) (Parentheticals) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.001
Common stock, shares authorized	600,000,000
Common stock, shares issued	129,220,710	128,758,086
Treasury stock, shares	49,160,358	48,768,145

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings
BEGINNING BALANCE at Dec. 31, 2020	$ 1,314,854	$ 127	$ 1,762,770	$ (2,391,062)	$ 1,943,019
BEGINNING BALANCE, shares at Dec. 31, 2020		127,586,000		48,115,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income, net of tax expense	129,620				129,620
Issuance of common stock to settle restricted stock units	(16,030)			$ (16,030)
Issuance of common stock to settle restricted stock units, net, shares		296,000		120,000
Cash dividends on common stock	(19,980)				(19,980)
Stock option exercises and other	13,880	$ 1	12,348	$ 871	660
Stock option exercises and other, shares		255,000		(24,000)
Share-based compensation	11,977		11,977
ENDING BALANCE at Mar. 31, 2021	1,434,321	$ 128	1,787,095	$ (2,406,221)	2,053,319
ENDING BALANCE, shares at Mar. 31, 2021		128,137,000		48,211,000
BEGINNING BALANCE at Dec. 31, 2021	1,670,533	$ 129	1,841,402	$ (2,498,600)	2,327,602
BEGINNING BALANCE, shares at Dec. 31, 2021		128,758,000		48,768,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income, net of tax expense	133,744				133,744
Issuance of common stock to settle restricted stock units	(20,962)			$ (20,962)
Issuance of common stock to settle restricted stock units, net, shares		279,000		115,000
Treasury stock purchases	$ (50,006)			$ 50,006
Treasury stock purchases, shares	292,163			292,000
Cash dividends on common stock	$ (20,013)				(20,013)
Stock option exercises and other	8,367		6,274	$ 533	1,560
Stock option exercises and other, shares		184,000		(15,000)
Share-based compensation	13,343		13,343
ENDING BALANCE at Mar. 31, 2022	$ 1,735,006	$ 129	$ 1,861,019	$ (2,569,035)	$ 2,442,893
ENDING BALANCE, shares at Mar. 31, 2022		129,221,000		49,160,000

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.25	$ 0.25
Treasury stock purchased	$ 50,006
Shares Purchased	292,163
Stock option exercises and other	$ 8,367	$ 13,880

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 133,744	$ 129,620
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	45,454	35,499
Amortization of intangible assets	21,196	17,431
Amortization of debt issuance costs	1,489	1,306
Share-based compensation	13,343	11,977
Provision for bad debts	4,222	1,977
Deferred income taxes	(219)	(133)
Loss on extinguishment of debt	0	24,400
Loan forgiveness	43,554	29,966
Other	1,289	(2,624)
Changes in operating assets and liabilities:
Receivables from clients	(45,234)	(48,120)
Receivables from product sponsors, broker-dealers and clearing organizations	(51,895)	(565)
Advisor loans, net	(51,605)	(47,519)
Receivables from others	(6,042)	(49,809)
Securities borrowed	6,701	(18,399)
Operating leases	(634)	(343)
Other assets	(38,607)	(25,105)
Payables to clients	(144,199)	(88,425)
Payables to broker-dealers and clearing organizations	(20,882)	35,820
Accrued advisory and commission expenses payable	(11,495)	8,004
Accounts payable and accrued liabilities	(17,242)	(48,745)
Increase (Decrease) in Other Operating Liabilities	41,945	94,197
Net cash (used in) provided by operating activities	(75,117)	60,410
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(73,545)	(41,109)
Purchase of securities classified as held-to-maturity	(2,434)	0
Proceeds from maturity of securities classified as held-to-maturity	1,250	1,250
Net cash used in investing activities	(74,729)	(39,859)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facilities	265,000	225,000
Repayments of revolving credit facilities	(355,000)	(225,000)
Repayment of senior unsecured notes	0	(900,000)
Repayment of senior secured term loans	(2,675)	(2,675)
Proceeds from senior unsecured notes	0	900,000
Payments of debt issuance costs	0	(12,150)
Make-whole premium on redemption of senior unsecured notes	0	(25,875)
Payment of contingent consideration	0	(3,645)
Tax payments related to settlement of restricted stock units	(20,962)	(16,030)
Repurchase of common stock	(50,006)	0
Dividends on common stock	(20,013)	(19,980)
Proceeds from stock option exercises and other	8,367	13,880
Principal payment of finance leases and obligations	(157)	(1,031)
Net cash used in financing activities	(175,446)	(67,506)
NET DECREASE IN CASH AND EQUIVALENTS AND RESTRICTED CASH	(325,292)	(46,955)
CASH AND EQUIVALENTS AND RESTRICTED CASH — Beginning of period	2,072,364	1,799,034
CASH AND EQUIVALENTS AND RESTRICTED CASH — End of period	1,747,072	1,752,079
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid	24,426	33,729
Income taxes paid	5,125	5,101
Cash paid for amounts included in the measurement of operating lease liabilities	5,913	5,406
Cash paid for amounts included in the measurement of finance lease liabilities	2,228	3,135
NONCASH DISCLOSURES:
Capital expenditures included in accounts payable and accrued liabilities	$ 19,764	$ 11,535

Condensed Consolidated Statem_7

Condensed Consolidated Statements of Cash Flows (Unaudited) cash, cash equivalent and restricted cash reconciliation - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 1,009,693	$ 495,246	$ 839,144
Cash segregated under federal and other regulations	644,986	1,496,463	839,428
Restricted cash	92,393	80,655	73,507
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 1,747,072	$ 2,072,364	$ 1,752,079	$ 1,799,034

Organization and Description of

Organization and Description of the Company	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of the Company	ORGANIZATION AND DESCRIPTION OF THE COMPANY LPL Financial Holdings Inc. (“LPLFH”), a Delaware holding corporation, together with its consolidated subsidiaries (collectively, the “Company”), provides an integrated platform of brokerage and investment advisory services to independent financial advisors and financial advisors at financial institutions (collectively, “advisors”) in the United States. Through its custody and clearing platform, using both proprietary and third-party technology, the Company provides access to diversified financial products and services, enabling its advisors to offer personalized financial advice and brokerage services to retail investors (their “clients”). The Company’s most significant, wholly owned subsidiaries are described below: • LPL Holdings, Inc. (“LPLH” or “Parent”), a Massachusetts holding corporation, is an intermediate holding company and directly or indirectly owns 100% of the issued and outstanding common stock of all of LPLFH’s indirect subsidiaries, including a captive insurance subsidiary (the “Captive Insurance Subsidiary”) that underwrites insurance for various legal and regulatory risks of the Company. • LPL Financial LLC (“LPL Financial”), with primary offices in San Diego, California; Fort Mill, South Carolina; Boston, Massachusetts; and Austin, Texas, is a clearing broker-dealer and an investment advisor that principally transacts business as an agent for its advisors and financial institutions on behalf of their clients in a broad array of financial products and services. LPL Financial is licensed to operate in all 50 states, Washington D.C., Puerto Rico and the U.S. Virgin Islands. • Fortigent Holdings Company, Inc. and its subsidiaries provide solutions and consulting services to registered investment advisors (“RIAs”), banks and trust companies serving high-net-worth clients. • LPL Insurance Associates, Inc. operates as an insurance brokerage general agency that offers life and disability insurance products and services for LPL Financial advisors. • AW Subsidiary, Inc. is a holding company for AdvisoryWorld and Blaze Portfolio Systems LLC (“Blaze”). AdvisoryWorld offers technology products, including proposal generation, investment analytics and portfolio modeling, to both the Company’s advisors and external clients in the wealth management industry. Blaze provides an advisor-facing trading and portfolio rebalancing platform. • PTC Holdings, Inc. (“PTCH”) is a holding company for The Private Trust Company, N.A. (“PTC”). PTC is chartered as a non-depository limited purpose national bank, providing a wide range of trust, investment management oversight, and custodial services for estates and families. PTC also provides Individual Retirement Account (“IRA”) custodial services for LPL Financial. Each member of PTCH’s Board of Directors meets the direct equity ownership interest requirements that are required by the OCC.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The unaudited condensed consolidated financial statements (“condensed consolidated financial statements”) are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”), which require the Company to make estimates and assumptions regarding the valuation of certain financial instruments, goodwill and other intangibles, allowance for credit losses on receivables, share-based compensation, accruals for liabilities, income taxes, revenue and expense accruals, and other matters that affect the condensed consolidated financial statements and related disclosures. Actual results could differ from those estimates under different assumptions or conditions and the differences may be material to the condensed consolidated financial statements. The condensed consolidated financial statements include the accounts of LPLFH and its subsidiaries. Intercompany transactions and balances have been eliminated. The unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the related notes for the year ended December 31, 2021, contained in the Company’s Annual Report on Form 10-K as filed with the Securities and Exchange Commission (“SEC”). Condensed Consolidated Financial Statement Presentation Changes The Company reclassified certain financial statement line items in the consolidated statements of income included in its Annual Report on Form 10-K for the year ended December 31, 2021 to more closely align with industry practice and the Company’s business and to better serve financial statement users. Prior period amounts in the condensed consolidated statements of income have been reclassified to conform to this presentation as follows: • The Company has disaggregated the activity previously reported in the Transaction and fee line item in Total revenue into its Service and fee and Transaction components; • The Company has included Interest expense on borrowings and Loss on extinguishment of debt in Total expense. Previously, these amounts were presented after Total operating expense. These changes did not impact total net income for the three months ended March 31, 2021. The Company also updated the condensed consolidated statement of cash flows for the three months ended March 31, 2021 to conform to changes made to the presentation of the statements of financial condition during the year ended December 31, 2021. See Note 2 - Summary of Significant Accounting Policies in the Company’s 2021 Annual Report on Form 10-K for additional information. In addition, during the year ended December 31, 2021, the Company concluded that it is acting in a principal capacity for fractional shares held in customer brokerage accounts resulting from the dividend reinvestment program (“DRIP”) that the Company offers. The Company concluded that it should account for these shares as a secured borrowing with underlying financial assets pledged as collateral. The Company corrected its condensed consolidated statement of cash flows for the three months ended March 31, 2021 to reflect the changes in the condensed consolidated statement of financial condition related to this activity in the prior period. As a result, the Company corrected the condensed consolidated statement of cash flows to reflect an increase in the change in other assets line item and an offsetting increase in the change in other liabilities line item of $6.7 million for the three months ended March 31, 2021. This adjustment did not have an impact on earnings, earnings per share, or net cash provided by operating activities in the prior period. The Company has evaluated the impact of the error on previously issued condensed consolidated financial statements and determined, based on consideration of quantitative and qualitative factors, that the impact of the error is immaterial. Related Party Transactions In the ordinary course of business, the Company has related party transactions with beneficial owners of more than five percent of the Company’s outstanding common stock. Additionally, through its subsidiary LPL Financial, the Company provides services and charitable contributions to LPL Financial Charitable Foundation Inc., a charitable organization that provides volunteer and financial support within the Company’s local communities. The Company recognized revenue for services provided to these related parties of $1.6 million and $1.4 million during the three months ended March 31, 2022 and 2021, respectively. The Company incurred expense for the services provided by these related parties of $1.9 million and $0.4 million during the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022 and December 31, 2021, receivables from and payables to related parties were not material. Recently Issued or Adopted Accounting Pronouncements There are no r elevant recently issued accounting pronouncements that would materially impact the Company’s condensed consolidated financial statements and related disclosures. There are no new accounting pronouncements adopted during the three months ended March 31, 2022 that materially impacted the Company’s condensed consolidated financial statements and related disclosures.

Revenue

Revenue	3 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenues	REVENUE Commission The following table presents total commission revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Commission revenue Annuities $ 299,734 $ 280,776 Mutual funds 189,527 173,150 Fixed income 25,205 32,162 Equities 34,633 38,911 Other 36,426 32,230 Total commission revenue $ 585,525 $ 557,229 The following table presents sales-based and trailing commission revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Commission revenue Sales-based Annuities $ 106,733 $ 95,539 Mutual funds 47,545 47,279 Fixed income 25,205 32,162 Equities 34,633 38,911 Other 26,215 22,382 Total sales-based revenue $ 240,331 $ 236,273 Trailing Annuities $ 193,001 $ 185,237 Mutual funds 141,982 125,871 Other 10,211 9,848 Total trailing revenue $ 345,194 $ 320,956 Total commission revenue $ 585,525 $ 557,229 Asset-Based The following table sets forth asset-based revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Asset-based revenue Client cash $ 84,716 $ 97,104 Sponsorship programs 101,382 81,712 Recordkeeping 110,303 85,890 Total asset-based revenue $ 296,401 $ 264,706 Service and Fee The following table sets forth service and fee revenue disaggregated by recognition pattern (in thousands): Three Months Ended March 31, 2022 2021 Service and fee revenue Point-in-time (1) $ 31,807 $ 23,275 Over time (2) 81,005 73,549 Total service and fee revenue $ 112,812 $ 96,824 _______________________________ (1) Service and fee revenue recognized at a point-in-time includes revenue such as IRA termination fees, confirmation fees and technology fees. (2) Service and fee revenue recognized over time includes revenue such as error and omission insurance fees, IRA custodian fees and technology fees. Unearned Revenue The Company records unearned revenue when cash payments are received or due in advance of the Company’s performance obligations, including amounts which are refundable. The increase in the unearned revenue balance for the three months ended March 31, 2022 is primarily driven by cash payments received or due in advance of satisfying the Company’s performance obligations, offset by $156.8 million of revenue recognized that was included in the unearned revenue balance as of December 31, 2021. The Company receives cash in advance for advisory services to be performed and conferences to be held in future periods. For advisory services, revenue is recognized as the Company provides the administration, brokerage and execution services over time to satisfy the performance obligations. For conference revenue, the Company recognizes revenue as the conferences are held.

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS On April 30, 2021, the Company acquired the wealth management business of Waddell & Reed Financial, Inc. for $300.0 million in order to expand its addressable markets and complement organic growth. The Company accounted for the acquisition under the acquisition method of accounting for business combinations. At March 31, 2022, the Company had allocated $128.6 million of the purchase price to goodwill, $122.7 million to definite-lived intangible assets, $62.3 million to cash acquired, and the remainder to other assets acquired and liabilities assumed as part of the acquisition. The goodwill primarily includes the synergies expected to result from combining operations and onboarding advisors and assets to the Company’s platform and is deductible for tax purposes. See Note 7 - Goodwill and Other Intangibles, Net , for additional information.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Inputs used to measure fair value are prioritized within a three-level fair value hierarchy. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: Level 1 — Quoted prices in active markets for identical assets or liabilities. Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. There have been no transfers of assets or liabilities between these fair value measurement classifications during the three months ended March 31, 2022 or 2021. The Company’s fair value measurements are evaluated within the fair value hierarchy, based on the nature of inputs used to determine the fair value at the measurement date. At March 31, 2022 and December 31, 2021, the Company had the following financial assets and liabilities that are measured at fair value on a recurring basis: Cash Equivalents — The Company’s cash equivalents include money market funds, which are short term in nature with readily determinable values derived from active markets. Trading Securities and Securities Sold, But Not Yet Purchased — The Company’s trading securities consist of house account model portfolios established and managed for the purpose of benchmarking the performance of its fee-based advisory platforms and temporary positions resulting from the processing of client transactions. The Company uses prices obtained from independent third-party pricing services to measure the fair value of its trading securities. Prices received from the pricing services are validated using various methods including comparison to prices received from additional pricing services, comparison to available quoted market prices and review of other relevant market data including implied yields of major categories of securities. In general, these quoted prices are derived from active markets for identical assets or liabilities. When quoted prices in active markets for identical assets and liabilities are not available, the quoted prices are based on similar assets and liabilities or inputs other than the quoted prices that are observable, either directly or indirectly. For negotiable certificates of deposit and treasury securities, the Company utilizes market-based inputs, including observable market interest rates that correspond to the remaining maturities or the next interest reset dates. At March 31, 2022 and December 31, 2021, the Company did not adjust prices received from the independent third-party pricing services. Other Assets — The Company’s other assets include: (1) deferred compensation plan assets that are invested in money market and other mutual funds, which are actively traded and valued based on quoted market prices; and (2) certain non-traded real estate investment trusts and auction rate notes, which are valued using quoted prices for identical or similar securities and other inputs that are observable or can be corroborated by observable market data. Fractional Shares — The Company’s investment in fractional shares held by customers is reflected in other assets while the related purchase obligation for such shares is reflected in other liabilities. The Company uses prices obtained from independent third-party pricing services to measure the fair value of its investment in fractional shares held by customers and the related repurchase obligation. Prices received from the pricing services are validated using various methods including comparison to prices received from additional pricing services, comparison to available quoted market prices and review of other relevant market data including implied yields of major categories of securities. At March 31, 2022 and December 31, 2021, the Company did not adjust prices received from the independent third-party pricing services. Accounts Payable and Accrued Liabilities — The Company’s accounts payable and accrued liabilities include contingent consideration liabilities that are measured using Level 3 inputs. Level 3 Recurring Fair Value Measurements The Company determines the fair value for its contingent consideration obligations using a scenario-based approach whereby the Company assesses the expected number of future transactions. The contingent payment is estimated by applying a discount rate to the expected payment to calculate the fair value as of the valuation date. The Company evaluates the underlying projections and other related factors used in determining fair value each period and makes updates when there have been significant changes in management’s expectations. Recurring Fair Value Measurements The following table summarizes the Company’s financial assets and financial liabilities measured at fair value on a recurring basis (in thousands): March 31, 2022 Level 1 Level 2 Level 3 Total Assets Cash equivalents $ 2,317 $ — $ — $ 2,317 Investment securities — trading: U.S. treasury obligations 19,543 — — 19,543 Mutual funds 12,531 — — 12,531 Equity securities 410 — — 410 Money market funds 135 — — 135 Total investment securities — trading 32,619 — — 32,619 Other assets: Deferred compensation plan 483,118 — — 483,118 Other investments — 9,344 — 9,344 Fractional shares — investment (1) 112,752 — — 112,752 Total other assets: 595,870 9,344 — 605,214 Total assets at fair value $ 630,806 $ 9,344 $ — $ 640,150 Liabilities Accounts payable and accrued liabilities $ — $ — $ 3,609 $ 3,609 Other liabilities: Securities sold, but not yet purchased: Mutual funds 926 — — 926 Equity securities 136 — — 136 Debt securities — 57 — 57 Total securities sold, but not yet purchased 1,062 57 — 1,119 Fractional shares — repurchase obligation (1) 112,752 — — 112,752 Total other liabilities 113,814 57 — 113,871 Total liabilities at fair value $ 113,814 $ 57 $ 3,609 $ 117,480 ____________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information. The following table summarizes the Company’s financial assets and financial liabilities measured at fair value on a recurring basis (in thousands): December 31, 2021 Level 1 Level 2 Level 3 Total Assets Cash equivalents $ 12,056 $ — $ — $ 12,056 Investment securities - trading: U.S. treasury obligations 19,599 — — 19,599 Mutual funds 19,112 — — 19,112 Equity securities 440 — — 440 Money market funds 123 — — 123 Total investment securities — trading 39,274 — — 39,274 Other assets: Deferred compensation plan 499,548 — — 499,548 Other investments — 9,166 — 9,166 Fractional shares - investment (1) 114,574 — — 114,574 Total other assets 614,122 9,166 — 623,288 Total assets at fair value $ 665,452 $ 9,166 $ — $ 674,618 Liabilities Accounts payable and accrued liabilities $ — $ — $ 3,530 $ 3,530 Other liabilities: Securities sold, but not yet purchased: Equity securities 467 — — 467 Debt securities — 105 — 105 Total securities sold, but not yet purchased 467 105 — 572 Fractional shares - repurchase obligation (1) 114,574 — — 114,574 Total other liabilities 115,041 105 — 115,146 Total liabilities at fair value $ 115,041 $ 105 $ 3,530 $ 118,676 ____________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information.

Held-to-Maturity Securities

Held-to-Maturity Securities	3 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Held-to-Maturity Securities	The Company’s investment securities include debt and equity securities that the Company has classified as trading securities, which are carried at fair value, as well as investments in U.S. government notes, which are held by The Private Trust Company, N.A. to satisfy minimum capital requirements of the OCC. These securities are recorded at amortized cost and classified as held-to-maturity as the Company has both the intent and ability to hold these investments to maturity. The following table summarizes investment securities (in thousands): March 31, 2022 December 31, 2021 Trading securities - at fair value: U.S. treasury obligations $ 19,543 $ 19,599 Mutual funds 12,531 19,112 Equity securities 410 440 Money market funds 135 123 Total trading securities $ 32,619 $ 39,274 Held-to-maturity securities - at amortized cost: U.S. government notes $ 11,090 $ 9,918 Total held-to-maturity securities $ 11,090 $ 9,918 Total investment securities $ 43,709 $ 49,192

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	GOODWILL AND OTHER INTANGIBLES, NET On April 30, 2021, the Company acquired the wealth management business of Waddell & Reed Financial, Inc. for $300.0 million. At March 31, 2022, the Company had allocated $128.6 million of the purchase price to goodwill, $122.7 million to definite-lived intangible assets, $62.3 million to cash acquired, and the remainder to other assets acquired and liabilities assumed as part of the acquisition. The intangible assets are comprised primarily of advisor relationships with a weighted average useful life of approximately 9 years. See Note 4 - Acquisitions for additional information. See Note 9 - Goodwill and Other Intangibles, Net in the Company’s audited consolidated financial statements and the related notes in the 2021 Annual Report on Form 10-K for additional information about other intangibles, net.

Other Assert and Other Liabilit

Other Assert and Other Liabilities	3 Months Ended
	Mar. 31, 2022
Other Assets And Other Liabilities [Abstract]
Other Assets and Other Liabilities	OTHER ASSETS AND OTHER LIABILITIES The components of other assets and other liabilities were as follows (dollars in thousands): March 31, 2022 December 31, 2021 Other assets: Deferred compensation $ 490,119 $ 499,548 Fractional shares — investment (1) 112,752 114,574 Prepaid assets 123,684 115,018 Operating lease assets 92,093 95,075 Debt issuance costs, net 6,841 7,303 Deferred income taxes, net 5,867 5,648 Other 52,475 49,822 Total other assets $ 883,831 $ 886,988 Other liabilities: Deferred compensation $ 491,423 $ 499,245 Unearned revenue (2) 182,506 160,926 Operating lease liabilities 126,689 130,304 Fractional shares — repurchase obligation (1) 112,752 114,574 Finance lease liabilities 105,911 106,067 Other 37,169 7,160 Total other liabilities $ 1,056,450 $ 1,018,276 _______________________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information. (2) See Note 3 - Revenue for further information.

Long-term and Other Borrowings

Long-term and Other Borrowings	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Long-term and Other Borrowings	AND OTHER BORROWINGS, NET The Company’s outstanding corporate debt and other borrowings, net were as follows (in thousands): March 31, 2022 December 31, 2021 Corporate Debt Balance Applicable Margin Interest Rate Balance Applicable Margin Interest rate Maturity Term Loan B (1) $ 1,045,925 LIBOR+175 bps 1.98 % $ 1,048,600 LIBOR+175 bps 1.85 % 11/12/2026 2027 Senior Notes (1) 400,000 Fixed Rate 4.63 % 400,000 Fixed Rate 4.63 % 11/15/2027 2029 Senior Notes (1) 900,000 Fixed Rate 4.00 % 900,000 Fixed Rate 4.00 % 3/15/2029 2031 Senior Notes (1) 400,000 Fixed Rate 4.38 % 400,000 Fixed Rate 4.38 % 5/15/2031 Total Corporate Debt 2,745,925 2,748,600 Less: Unamortized Debt Issuance Cost (23,529) (24,556) Corporate debt, net $ 2,722,396 $ 2,724,044 Other Borrowings Revolving Credit Facility (2) — ABR+25 bps 3.50 % 55,000 ABR+25 bps 3.50 % 3/15/2026 Unsecured, Uncommitted Lines of Credit — Broker Base Rate+75 bps 1.00 % 35,000 Broker Base Rate+75 bps 1.00 % 9/30/2022 Total other borrowings $ — $ 90,000 Corporate Debt and Other Borrowings, Net $ 2,722,396 $ 2,814,044 _______________________________ (1) No leverage or interest coverage maintenance covenants. (2) The alternate base rate (ABR) was the PRIME rate. The following table presents amounts outstanding and available under the Company’s external lines of credit at March 31, 2022 (in millions): Description Borrower Maturity Date Outstanding Available Senior secured, revolving credit facility LPL Holdings, Inc. March 2026 $ — $ 1,000 Broker-dealer revolving credit facility LPL Financial LLC July 2024 $ — $ 300 Unsecured, uncommitted lines of credit LPL Financial LLC September 2022 $ — $ 75 Unsecured, uncommitted lines of credit LPL Financial LLC September 2022 $ — $ 50 Unsecured, uncommitted lines of credit LPL Financial LLC None $ — $ 75 Secured, uncommitted lines of credit LPL Financial LLC None $ — unspecified Secured, uncommitted lines of credit LPL Financial LLC None $ — unspecified Outstanding balances under our external lines of credit at December 31, 2021 were repaid in January 2022. There were no borrowings outstanding under the Company’s external lines of credit at March 31, 2022. Issuance of 2031 Senior Notes LPLH raised $400.0 million in aggregate principal amount of 4.375% senior notes on May 18, 2021, which were issued at par (“2031 Senior Notes”). The Company used the proceeds from the issuance to repay borrowings made under the senior secured revolving credit facility related to the acquisition of the wealth management business of Waddell & Reed Financial, Inc. In connection with the issuance of the 2031 Senior Notes, the Company incurred $3.8 million in costs, which were capitalized as debt issuance costs in the condensed consolidated statements of financial condition. Issuance of 2029 Senior Notes LPLH raised $900.0 million in aggregate principal amount of 4.00% senior notes on March 15, 2021, which were issued at par (“2029 Senior Notes”). The Company used the proceeds from the issuance of the 2029 Senior Notes, along with existing Corporate Cash available, to redeem its existing 5.75% senior unsecured notes due in 2025. In connection with this redemption, the Company recognized $24.4 million as a loss on extinguishment of debt on the condensed consolidated statement of income for the three months ended March 31, 2021. In connection with the issuance of the 2029 Senior Notes, the Company incurred $9.0 million in costs, which were capitalized as debt issuance costs in the condensed consolidated statements of financial condition. Credit Agreement On March 15, 2021, LPLFH and LPLH entered into a fifth amendment agreement (the “Amendment”) to the Company’s amended and restated credit agreement (“Credit Agreement”), which, among other things, increased the size of its senior secured revolving credit facility to $1.0 billion and extended its maturity date. In connection with the execution of the Amendment, the Company incurred $3.2 million in costs, which are capitalized as debt issuance costs in the condensed consolidated statements of financial condition. The Credit Agreement subjects the Company to certain financial and non-financial covenants. As of March 31, 2022, the Company was in compliance with such covenants. Parent Revolving Credit Facility Borrowings under the revolving credit facility bear interest at a rate per annum ranging from 125 to 175 basis points over the Eurodollar Rate or 25 to 75 basis points over the base rate, depending on the Consolidated Secured Debt to Consolidated EBITDA Ratio (as defined in the Credit Agreement). Broker-Dealer Revolving Credit Facility On July 31, 2019, LPL Financial, the Company’s broker-dealer subsidiary, entered into a committed, unsecured revolving credit facility that matures on July 31, 2024 and allows for a maximum borrowing of up to $300.0 million. Borrowings bear interest at a rate per annum ranging from 112.5 to 137.5 basis points over the Federal Funds Rate or Eurodollar Rate, depending on the Parent Leverage Ratio (each as defined in the broker-dealer credit agreement). The broker-dealer credit agreement subjects LPL Financial to certain financial and non-financial covenants. LPL Financial was in compliance with such covenants as of March 31, 2022. Other External Lines of Credit

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Service and Development Contracts The Company is party to certain long-term contracts for systems and services that enable back-office trade processing and clearing for its product and service offerings. Guarantees The Company occasionally enters into contracts that contingently require it to indemnify certain parties against third-party claims. The terms of these obligations vary and, because a maximum obligation is not explicitly stated, the Company has determined that it is not possible to make an estimate of the amount that it could be obligated to pay under such contracts. LPL Financial provides guarantees to securities clearing houses and exchanges under their standard membership agreements, which require a member to guarantee the performance of other members. Under these agreements, if a member becomes unable to satisfy its obligations to the clearing houses and exchanges, all other members would be required to meet any shortfall. The Company’s liability under these arrangements is not quantifiable and could exceed the cash and securities it has posted as collateral. However, the potential requirement for the Company to make payments under these agreements is remote. Accordingly, no liability has been recognized for these transactions. Loan Commitments From time to time, LPL Financial makes loans to its advisors, primarily to newly recruited advisors to assist in the transition process, which may be forgivable. Due to timing differences, LPL Financial may make commitments to issue such loans prior to actually funding them. These commitments are generally contingent upon certain events occurring, including but not limited to the advisor joining LPL Financial. LPL Financial had no significant unfunded loan commitments at March 31, 2022 or December 31, 2021. Legal and Regulatory Matters The Company is subject to extensive regulation and supervision by U.S. federal and state agencies and various self-regulatory organizations. The Company and its advisors periodically engage with such agencies and organizations, in the context of examinations or otherwise, to respond to inquiries, informational requests and investigations. From time to time, such engagements result in regulatory complaints or other matters, the resolution of which has in the past and may in the future include fines, customer restitution and other remediation. Assessing the probability of a loss occurring and the timing and amount of any loss related to a legal proceeding or regulatory matter is inherently difficult. While the Company exercises significant and complex judgments to make certain estimates presented in its condensed consolidated financial statements, there are particular uncertainties and complexities involved when assessing the potential outcomes of legal proceedings and regulatory matters. The Company’s assessment process considers a variety of factors and assumptions, which may include: the procedural status of the matter and any recent developments; prior experience and the experience of others in similar matters; the size and nature of potential exposures; available defenses; the progress of fact discovery; the opinions of counsel and experts; or the potential opportunities for settlement and the status of any settlement discussions. The Company monitors these factors and assumptions for new developments and re-assesses the likelihood that a loss will occur and the estimated range or amount of loss, if those amounts can be reasonably determined. The Company has established an accrual for those legal proceedings and regulatory matters for which a loss is both probable and the amount can be reasonably estimated. Third-Party Insurance The Company maintains third-party insurance coverage for certain potential legal proceedings, including those involving certain client claims. With respect to such client claims, the estimated losses on many of the pending matters are less than the applicable deductibles of the insurance policies. Self-Insurance The Company has self-insurance for certain potential liabilities through the Captive Insurance Subsidiary. Liabilities associated with the risks that are retained by the Company are not discounted and are estimated by considering, in part, historical claims experience, severity factors, and actuarial assumptions and estimates. The estimated accruals for these potential liabilities could be significantly affected if future occurrences and claims differ from such assumptions and historical trends, so there are particular complexities and uncertainties involved when assessing the adequacy of loss reserves for potential liabilities that are self-insured. As of March 31, 2022 and December 31, 2021, these self-insurance liabilities were $68.4 million and $67.2 million, respectively, and are included in accounts payable and accrued liabilities in the condensed consolidated statements of financial condition. The increase in self-insurance liabilities during the three months ended March 31, 2022 was driven by $9.1 million of additional reserves for claims that had been incurred but not reported, which were partially offset by $7.9 million of payments made during the period. Self-insurance related charges are included in other expense in the condensed consolidated statements of income. Other Commitments As of March 31, 2022, the Company had approximately $539.1 million of client margin loans that were collateralized with securities having a fair value of approximately $754.7 million that LPL Financial can repledge, loan or sell. Of these securities, approximately $74.4 million were client-owned securities pledged to the Options Clearing Corporation as collateral to secure client obligations related to options positions. As of March 31, 2022, there were no restrictions that materially limited the Company’s ability to repledge, loan or sell the remaining $680.3 million of client collateral. Investment securities on the condensed consolidated statements of financial condition include $4.5 million and $4.6 million of trading securities pledged to the Options Clearing Corporation at March 31, 2022 and December 31, 2021,

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	STOCKHOLDERS’ EQUITY Dividends The payment, timing, and amount of any dividends are subject to approval by the Company’s Board of Directors as well as certain limits under the Credit Agreement and the indentures governing the Company’s senior unsecured notes (the “Indentures”). Cash dividends per share of common stock and total cash dividends paid on a quarterly basis were as follows (in millions, except per share data): 2022 2021 Dividend per Share Total Cash Dividend Dividend per Share Total Cash Dividend First quarter $ 0.25 $ 20.0 $ 0.25 $ 20.0 Share Repurchases The Company engages in share repurchase programs, which are approved by the Board of Directors, pursuant to which the Company may repurchase its issued and outstanding shares of common stock from time to time. Repurchased shares are included in treasury stock on the condensed consolidated statements of financial condition.

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Stockholders' Equity	SHARE-BASED COMPENSATION In May 2021, the Company adopted the 2021 Omnibus Equity Incentive Plan (the “2021 Plan”), which provides for the granting of stock options, warrants, restricted stock awards, restricted stock units, deferred stock units, performance stock units and other equity-based compensation to the Company’s employees, non-employee directors and other service providers. The 2021 Plan serves as the successor to the Company’s 2010 Omnibus Equity Incentive Plan (the “2010 Plan”). Following the adoption of the 2021 Plan, the Company is no longer making grants under the 2010 Plan, and the 2021 Plan is the only plan under which equity awards are granted. However, awards previously granted under the 2010 Plan will remain outstanding until vested, exercised or forfeited, as applicable. There were 17,754,197 shares authorized for grant under the 2021 Plan and 13,807,670 shares remaining available for future issuance at March 31, 2022. Stock Options and Warrants The following table summarizes the Company’s stock option and warrant activity as of and for the three months ended March 31, 2022: Number of Weighted- Weighted-Average Aggregate Outstanding — December 31, 2021 1,204,420 $ 45.65 Granted — $ — Exercised (183,557) $ 34.10 Forfeited and Expired (1,433) $ 77.53 Outstanding — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615 Exercisable — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615 Exercisable and expected to vest — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615 The following table summarizes information about outstanding stock options and warrants as of March 31, 2022: Outstanding Exercisable Range of Exercise Prices Number of Weighted- Weighted-Average Number of Weighted- $19.85 - $25.00 194,626 $ 19.85 3.91 194,626 $ 19.85 $25.01 - $35.00 119,333 $ 29.38 0.66 119,333 $ 29.38 $35.01 - $45.00 240,094 $ 39.48 4.95 240,094 $ 39.48 $45.01 - $65.00 77,091 $ 48.92 2.56 77,091 $ 48.92 $65.01 - $75.00 175,319 $ 65.50 5.89 175,319 $ 65.50 $75.01 - $80.00 212,967 $ 77.53 6.79 212,967 $ 77.53 1,019,430 $ 47.69 4.62 1,019,430 $ 47.69 The Company has not granted stock options or warrants since 2019. The Company recognized share-based compensation related to the vesting of stock options of $0.2 million and $0.8 million during the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022, there was no unrecognized compensation cost related to non-vested stock options as the remaining share-based compensation expense was recognized during the three months ended March 31, 2022. Restricted Stock and Stock Units The following summarizes the Company’s activity in its restricted stock awards and stock units, which include restricted stock units, deferred stock units and performance stock units, as of and for the three months ended March 31, 2022: Restricted Stock Awards Stock Units Number of Weighted-Average Number of Weighted-Average Outstanding — December 31, 2021 1,051 $ 156.54 915,907 $ 110.62 Granted — $ — 319,536 $ 186.84 Vested — $ — (279,955) $ 102.38 Forfeited — $ — (22,122) $ 123.56 Outstanding — March 31, 2022 1,051 $ 156.54 933,366 (1) $ 138.87 Expected to vest — March 31, 2022 1,051 $ 156.54 800,618 $ 144.54 _______________________________ (1) Includes 72,516 vested and undistributed deferred stock units. The Company grants restricted stock awards and deferred stock units to its directors and restricted stock units and performance stock units to its employees and officers. Restricted stock awards and stock units must vest or are subject to forfeiture; however, restricted stock awards are included in shares outstanding upon grant and have the same dividend and voting rights as the Company’s common stock. The Company recognized $11.9 million and $10.2 million of share-based compensation related to the vesting of these restricted stock awards and stock units during the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022, total unrecognized compensation cost for restricted stock awards and stock units was $91.1 million, which is expected to be recognized over a weighted-average remaining period of 2.35 years. The Company also grants restricted stock units to its advisors and to financial institutions. The Company recognized share-based compensation of $0.6 million related to the vesting of these awards during both the three months ended March 31, 2022 and 2021, respectively. As of March 31, 2022, total unrecognized compensation cost for restricted stock units granted to advisors and financial institutions was $4.2 million, which is expected to be recognized over a weighted-average remaining period of 1.97 years.

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Earnings per Share	EARNINGS PER SHARE Basic earnings per share is computed by dividing net income available to common stockholders by the weighted-average number of shares of common stock outstanding during the period. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that the denominator is increased to include the number of additional shares of common stock that would have been outstanding if dilutive potential shares of common stock had been issued. The calculation of basic and diluted earnings per share for the periods noted was as follows (in thousands, except per share data): Three Months Ended March 31, 2022 2021 Net income $ 133,744 $ 129,620 Basic weighted-average number of shares outstanding 79,976 79,697 Dilutive common share equivalents 1,596 1,925 Diluted weighted-average number of shares outstanding 81,572 81,622 Basic earnings per share $ 1.67 $ 1.63 Diluted earnings per share $ 1.64 $ 1.59 The computation of diluted earnings per share excludes stock options, warrants and stock units that are anti-dilutive. For the three months ended March 31, 2022 and 2021, stock options, warrants and stock units representing common share equivalents of 60,275 shares and 88,853 shares, respectively, were anti-dilutive.

Net Capital and Regulatory Requ

Net Capital and Regulatory Requirements	3 Months Ended
	Mar. 31, 2022
Brokers and Dealers [Abstract]
Net Capital and Regulatory Requirements	NET CAPITAL AND REGULATORY REQUIREMENTS The Company’s registered broker-dealer, LPL Financial, is subject to the SEC’s Uniform Net Capital Rule (Rule 15c3-1 under the Exchange Act), which requires the maintenance of minimum net capital. The net capital rules also provide that the broker-dealer’s capital may not be withdrawn if the resulting net capital would be less than minimum requirements. Additionally, certain withdrawals require the approval of the SEC and FINRA to the extent they exceed defined levels, even though such withdrawals would not cause net capital to be less than minimum requirements. Net capital and the related net capital requirement may fluctuate on a daily basis. LPL Financial is a clearing broker-dealer and, as of March 31, 2022, had net capital of $156.5 million, which was $141.2 million in excess of its minimum net capital requirement of $15.3 million. The Company’s subsidiary, PTC, also operates in a highly regulated industry and is subject to various regulatory capital requirements. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have substantial monetary and non-monetary impacts on PTC’s operations. As of March 31, 2022 and December 31, 2021, LPL Financial and PTC met all capital adequacy requirements to which they were subject.

Financial Instruments with Off-

Financial Instruments with Off-Balance-Sheet Credit Risk and Concentrations of Credit Risk	3 Months Ended
	Mar. 31, 2022
Concentration Risk Credit Risk Financial Instruments Off Balance Sheet Risk [Abstract]
Financial Instruments with Off-Balance-Sheet Credit Risk and Concentrations of Credit Risk	FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET CREDIT RISK AND CONCENTRATIONS OF CREDIT RISK LPL Financial may offer repayable loans to recruit or support the transition of an advisor to its platform. LPL Financial also offers forgivable loans for similar purposes that may convert to repayable loans upon advisor termination. LPL Financial may incur losses if advisors do not fulfill their obligations with respect to these loans. To mitigate this risk, LPL Financial monitors the performance and creditworthiness of the advisor prior to offering repayable loans. LPL Financial’s client securities activities are transacted on either a cash or margin basis. In margin transactions, LPL Financial extends credit to the advisor’s client, subject to various regulatory and internal margin requirements, which is collateralized by cash and securities in the client’s account. As clients write options contracts or sell securities short, LPL Financial may incur losses if the clients do not fulfill their obligations and the collateral in the clients’ accounts is not sufficient to fully cover losses that clients may incur from these strategies. To control this risk, LPL Financial monitors margin levels daily and clients are required to deposit additional collateral, or reduce positions, when necessary. LPL Financial is obligated to settle transactions with brokers and other financial institutions even if its advisors’ clients fail to meet their obligation to LPL Financial. Clients are required to complete their transactions on the settlement date, generally two business days after the trade date. If clients do not fulfill their contractual obligations, LPL Financial may incur losses. In addition, the Company occasionally enters into certain types of contracts to fulfill its sale of when-issued securities. When-issued securities have been authorized but are contingent upon the actual issuance of the security. LPL Financial has established procedures to reduce this risk by generally requiring that clients deposit cash or securities into their account prior to placing an order. LPL Financial may at times hold equity securities on both a long and short basis that are recorded on the condensed consolidated statements of financial condition at market value. While long inventory positions represent LPL Financial’s ownership of securities, short inventory positions represent obligations of LPL Financial to deliver specified securities at a contracted price, which may differ from market prices prevailing at the time of completion of the transaction. Accordingly, both long and short inventory positions may result in losses or gains to LPL Financial as market values of securities fluctuate. To mitigate the risk of losses, long and short positions are marked-to-market daily and are continuously monitored by LPL Financial.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial statements (“condensed consolidated financial statements”) are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”), which require the Company to make estimates and assumptions regarding the valuation of certain financial instruments, goodwill and other intangibles, allowance for credit losses on receivables, share-based compensation, accruals for liabilities, income taxes, revenue and expense accruals, and other matters that affect the condensed consolidated financial statements and related disclosures. Actual results could differ from those estimates under different assumptions or conditions and the differences may be material to the condensed consolidated financial statements. The condensed consolidated financial statements include the accounts of LPLFH and its subsidiaries. Intercompany transactions and balances have been eliminated. The unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the related notes
Recently Issued & Adopted Accounting Pronouncements	Recently Issued or Adopted Accounting Pronouncements There are no r elevant recently issued accounting pronouncements that would materially impact the Company’s condensed consolidated financial statements and related disclosures. There are no new accounting pronouncements adopted during the three months ended March 31, 2022 that materially impacted the Company’s condensed consolidated financial statements and related disclosures.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue - Reporting Category [Table Text Block]	The following table presents total commission revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Commission revenue Annuities $ 299,734 $ 280,776 Mutual funds 189,527 173,150 Fixed income 25,205 32,162 Equities 34,633 38,911 Other 36,426 32,230 Total commission revenue $ 585,525 $ 557,229
Disaggregation of Revenue - Reporting Category & Timing of Transfer of Good or Service [Table Text Block]	The following table presents sales-based and trailing commission revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Commission revenue Sales-based Annuities $ 106,733 $ 95,539 Mutual funds 47,545 47,279 Fixed income 25,205 32,162 Equities 34,633 38,911 Other 26,215 22,382 Total sales-based revenue $ 240,331 $ 236,273 Trailing Annuities $ 193,001 $ 185,237 Mutual funds 141,982 125,871 Other 10,211 9,848 Total trailing revenue $ 345,194 $ 320,956 Total commission revenue $ 585,525 $ 557,229 Asset-Based
Disaggregation of Revenue - Product and Service [Table Text Block]	The following table sets forth asset-based revenue disaggregated by product category (in thousands): Three Months Ended March 31, 2022 2021 Asset-based revenue Client cash $ 84,716 $ 97,104 Sponsorship programs 101,382 81,712 Recordkeeping 110,303 85,890 Total asset-based revenue $ 296,401 $ 264,706
Disaggregation of Revenue - Timing of Transfer of Good or Service [Table Text Block]	The following table sets forth service and fee revenue disaggregated by recognition pattern (in thousands): Three Months Ended March 31, 2022 2021 Service and fee revenue Point-in-time (1) $ 31,807 $ 23,275 Over time (2) 81,005 73,549 Total service and fee revenue $ 112,812 $ 96,824 _______________________________ (1) Service and fee revenue recognized at a point-in-time includes revenue such as IRA termination fees, confirmation fees and technology fees. (2) Service and fee revenue recognized over time includes revenue such as error and omission insurance fees, IRA custodian fees and technology fees.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Financial assets and financial liabilities measured at fair value on a recurring basis	The following table summarizes the Company’s financial assets and financial liabilities measured at fair value on a recurring basis (in thousands): March 31, 2022 Level 1 Level 2 Level 3 Total Assets Cash equivalents $ 2,317 $ — $ — $ 2,317 Investment securities — trading: U.S. treasury obligations 19,543 — — 19,543 Mutual funds 12,531 — — 12,531 Equity securities 410 — — 410 Money market funds 135 — — 135 Total investment securities — trading 32,619 — — 32,619 Other assets: Deferred compensation plan 483,118 — — 483,118 Other investments — 9,344 — 9,344 Fractional shares — investment (1) 112,752 — — 112,752 Total other assets: 595,870 9,344 — 605,214 Total assets at fair value $ 630,806 $ 9,344 $ — $ 640,150 Liabilities Accounts payable and accrued liabilities $ — $ — $ 3,609 $ 3,609 Other liabilities: Securities sold, but not yet purchased: Mutual funds 926 — — 926 Equity securities 136 — — 136 Debt securities — 57 — 57 Total securities sold, but not yet purchased 1,062 57 — 1,119 Fractional shares — repurchase obligation (1) 112,752 — — 112,752 Total other liabilities 113,814 57 — 113,871 Total liabilities at fair value $ 113,814 $ 57 $ 3,609 $ 117,480 ____________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information. The following table summarizes the Company’s financial assets and financial liabilities measured at fair value on a recurring basis (in thousands): December 31, 2021 Level 1 Level 2 Level 3 Total Assets Cash equivalents $ 12,056 $ — $ — $ 12,056 Investment securities - trading: U.S. treasury obligations 19,599 — — 19,599 Mutual funds 19,112 — — 19,112 Equity securities 440 — — 440 Money market funds 123 — — 123 Total investment securities — trading 39,274 — — 39,274 Other assets: Deferred compensation plan 499,548 — — 499,548 Other investments — 9,166 — 9,166 Fractional shares - investment (1) 114,574 — — 114,574 Total other assets 614,122 9,166 — 623,288 Total assets at fair value $ 665,452 $ 9,166 $ — $ 674,618 Liabilities Accounts payable and accrued liabilities $ — $ — $ 3,530 $ 3,530 Other liabilities: Securities sold, but not yet purchased: Equity securities 467 — — 467 Debt securities — 105 — 105 Total securities sold, but not yet purchased 467 105 — 572 Fractional shares - repurchase obligation (1) 114,574 — — 114,574 Total other liabilities 115,041 105 — 115,146 Total liabilities at fair value $ 115,041 $ 105 $ 3,530 $ 118,676 ____________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information.
Fair Value Disclosure of Asset and Liability Not Measured at Fair Value	The following tables summarize the carrying values, fair values and fair value hierarchy level classification of financial instruments that are not measured at fair value (in thousands): March 31, 2022 Carrying Value Level 1 Level 2 Level 3 Total Fair Value Assets Cash $ 1,007,376 $ 1,007,376 $ — $ — $ 1,007,376 Cash segregated under federal or other regulations 644,986 644,986 — — 644,986 Restricted cash 92,393 92,393 — — 92,393 Receivables from clients, net 624,188 — 624,188 — 624,188 Receivables from brokers, dealers and clearing organizations 154,398 — 154,398 — 154,398 Advisor repayable loans, net (1) 204,293 — — 188,451 188,451 Other receivables, net 587,601 — 587,601 — 587,601 Investment securities — held-to-maturity securities 11,090 — 10,913 — 10,913 Other assets: Securities borrowed 9,898 — 9,898 — 9,898 Deferred compensation plan (2) 7,001 7,001 — — 7,001 Other investments (3) 4,643 — 4,643 — 4,643 Total other assets 21,542 7,001 14,541 — 21,542 Liabilities Client payables $ 1,568,025 $ — $ 1,568,025 $ — $ 1,568,025 Payables to brokers, dealers and clearing organizations 149,237 — 149,237 — 149,237 Corporate debt and other borrowings, net 2,722,396 — 2,662,503 — 2,662,503 December 31, 2021 Carrying Value Level 1 Level 2 Level 3 Total Fair Value Assets Cash $ 483,190 $ 483,190 $ — $ — $ 483,190 Cash segregated under federal or other regulations 1,496,463 1,496,463 — — 1,496,463 Restricted cash 80,655 80,655 — — 80,655 Receivables from clients, net 578,889 — 578,889 — 578,889 Receivables from brokers, dealers and clearing organizations 102,503 — 102,503 — 102,503 Advisor repayable loans, net (1) 191,242 — — 176,864 176,864 Other receivables, net 581,483 — 581,483 — 581,483 Investment securities - held-to-maturity securities 9,918 — 9,915 — 9,915 Other assets: Securities borrowed 9,958 — 9,958 — 9,958 Other investments (3) 4,595 — 4,595 — 4,595 Total other assets 14,553 — 14,553 — 14,553 Liabilities Client payables $ 1,712,224 $ — $ 1,712,224 $ — $ 1,712,224 Payables to brokers, dealers and clearing organizations 170,119 — 170,119 — 170,119 Corporate debt and other borrowings, net 2,814,044 — 2,885,536 — 2,885,536 ____________________ (1) Includes repayable loans and forgivable loans which have converted to repayable upon advisor termination. (2) Includes cash balances awaiting investment or distribution to plan participants. (3) Other investments include DTC common shares and Federal Reserve stock.

Held-to-Maturity Securities (Ta

Held-to-Maturity Securities (Tables)	3 Months Ended
	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Summary of amortized cost, gross unrealized gain (loss), and fair value of securities held-to-maturity	The following table summarizes investment securities (in thousands): March 31, 2022 December 31, 2021 Trading securities - at fair value: U.S. treasury obligations $ 19,543 $ 19,599 Mutual funds 12,531 19,112 Equity securities 410 440 Money market funds 135 123 Total trading securities $ 32,619 $ 39,274 Held-to-maturity securities - at amortized cost: U.S. government notes $ 11,090 $ 9,918 Total held-to-maturity securities $ 11,090 $ 9,918 Total investment securities $ 43,709 $ 49,192
Maturities of securities held-to-maturity	At March 31, 2022, the held-to-maturity securities were scheduled to mature as follow s (in thousands): Within one year After one but within five years After five but within ten years After ten years Total U.S. government notes — at amortized cost $ 5,522 $ 5,568 $ — $ — $ 11,090 U.S. government notes — at fair value $ 5,507 $ 5,406 $ — $ — $ 10,913

Other Assert and Other Liabil_2

Other Assert and Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2022
Other Assets And Other Liabilities [Abstract]
Schedule of other assets and other liabilities	The components of other assets and other liabilities were as follows (dollars in thousands): March 31, 2022 December 31, 2021 Other assets: Deferred compensation $ 490,119 $ 499,548 Fractional shares — investment (1) 112,752 114,574 Prepaid assets 123,684 115,018 Operating lease assets 92,093 95,075 Debt issuance costs, net 6,841 7,303 Deferred income taxes, net 5,867 5,648 Other 52,475 49,822 Total other assets $ 883,831 $ 886,988 Other liabilities: Deferred compensation $ 491,423 $ 499,245 Unearned revenue (2) 182,506 160,926 Operating lease liabilities 126,689 130,304 Fractional shares — repurchase obligation (1) 112,752 114,574 Finance lease liabilities 105,911 106,067 Other 37,169 7,160 Total other liabilities $ 1,056,450 $ 1,018,276 _______________________________ (1) Investment in and related repurchase obligation for fractional shares resulting from the Company’s DRIP program. See Note 2 - Summary of Significant Accounting Policies for further information. (2) See Note 3 - Revenue for further information.

Long-term and Other Borrowings

Long-term and Other Borrowings (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Long-term and Other Borrowings	The Company’s outstanding corporate debt and other borrowings, net were as follows (in thousands): March 31, 2022 December 31, 2021 Corporate Debt Balance Applicable Margin Interest Rate Balance Applicable Margin Interest rate Maturity Term Loan B (1) $ 1,045,925 LIBOR+175 bps 1.98 % $ 1,048,600 LIBOR+175 bps 1.85 % 11/12/2026 2027 Senior Notes (1) 400,000 Fixed Rate 4.63 % 400,000 Fixed Rate 4.63 % 11/15/2027 2029 Senior Notes (1) 900,000 Fixed Rate 4.00 % 900,000 Fixed Rate 4.00 % 3/15/2029 2031 Senior Notes (1) 400,000 Fixed Rate 4.38 % 400,000 Fixed Rate 4.38 % 5/15/2031 Total Corporate Debt 2,745,925 2,748,600 Less: Unamortized Debt Issuance Cost (23,529) (24,556) Corporate debt, net $ 2,722,396 $ 2,724,044 Other Borrowings Revolving Credit Facility (2) — ABR+25 bps 3.50 % 55,000 ABR+25 bps 3.50 % 3/15/2026 Unsecured, Uncommitted Lines of Credit — Broker Base Rate+75 bps 1.00 % 35,000 Broker Base Rate+75 bps 1.00 % 9/30/2022 Total other borrowings $ — $ 90,000 Corporate Debt and Other Borrowings, Net $ 2,722,396 $ 2,814,044 _______________________________ (1) No leverage or interest coverage maintenance covenants. (2) The alternate base rate (ABR) was the PRIME rate. The following table presents amounts outstanding and available under the Company’s external lines of credit at March 31, 2022 (in millions): Description Borrower Maturity Date Outstanding Available Senior secured, revolving credit facility LPL Holdings, Inc. March 2026 $ — $ 1,000 Broker-dealer revolving credit facility LPL Financial LLC July 2024 $ — $ 300 Unsecured, uncommitted lines of credit LPL Financial LLC September 2022 $ — $ 75 Unsecured, uncommitted lines of credit LPL Financial LLC September 2022 $ — $ 50 Unsecured, uncommitted lines of credit LPL Financial LLC None $ — $ 75 Secured, uncommitted lines of credit LPL Financial LLC None $ — unspecified Secured, uncommitted lines of credit LPL Financial LLC None $ — unspecified Outstanding balances under our external lines of credit at December 31, 2021 were repaid in January 2022. There were no borrowings outstanding under the Company’s external lines of credit at March 31, 2022.

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
Dividends Declared [Table Text Block]	Cash dividends per share of common stock and total cash dividends paid on a quarterly basis were as follows (in millions, except per share data): 2022 2021 Dividend per Share Total Cash Dividend Dividend per Share Total Cash Dividend First quarter $ 0.25 $ 20.0 $ 0.25 $ 20.0

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Summary of stock option and warrant activity	The following table summarizes the Company’s stock option and warrant activity as of and for the three months ended March 31, 2022: Number of Weighted- Weighted-Average Aggregate Outstanding — December 31, 2021 1,204,420 $ 45.65 Granted — $ — Exercised (183,557) $ 34.10 Forfeited and Expired (1,433) $ 77.53 Outstanding — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615 Exercisable — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615 Exercisable and expected to vest — March 31, 2022 1,019,430 $ 47.69 4.62 $ 137,615
Summary of outstanding stock options and warrant information	The following table summarizes information about outstanding stock options and warrants as of March 31, 2022: Outstanding Exercisable Range of Exercise Prices Number of Weighted- Weighted-Average Number of Weighted- $19.85 - $25.00 194,626 $ 19.85 3.91 194,626 $ 19.85 $25.01 - $35.00 119,333 $ 29.38 0.66 119,333 $ 29.38 $35.01 - $45.00 240,094 $ 39.48 4.95 240,094 $ 39.48 $45.01 - $65.00 77,091 $ 48.92 2.56 77,091 $ 48.92 $65.01 - $75.00 175,319 $ 65.50 5.89 175,319 $ 65.50 $75.01 - $80.00 212,967 $ 77.53 6.79 212,967 $ 77.53 1,019,430 $ 47.69 4.62 1,019,430 $ 47.69
Summary of restricted stock awards and restricted stock units activity	The following summarizes the Company’s activity in its restricted stock awards and stock units, which include restricted stock units, deferred stock units and performance stock units, as of and for the three months ended March 31, 2022: Restricted Stock Awards Stock Units Number of Weighted-Average Number of Weighted-Average Outstanding — December 31, 2021 1,051 $ 156.54 915,907 $ 110.62 Granted — $ — 319,536 $ 186.84 Vested — $ — (279,955) $ 102.38 Forfeited — $ — (22,122) $ 123.56 Outstanding — March 31, 2022 1,051 $ 156.54 933,366 (1) $ 138.87 Expected to vest — March 31, 2022 1,051 $ 156.54 800,618 $ 144.54 _______________________________ (1) Includes 72,516 vested and undistributed deferred stock units.

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Basic and diluted earnings per share computations	The calculation of basic and diluted earnings per share for the periods noted was as follows (in thousands, except per share data): Three Months Ended March 31, 2022 2021 Net income $ 133,744 $ 129,620 Basic weighted-average number of shares outstanding 79,976 79,697 Dilutive common share equivalents 1,596 1,925 Diluted weighted-average number of shares outstanding 81,572 81,622 Basic earnings per share $ 1.67 $ 1.63 Diluted earnings per share $ 1.64 $ 1.59

Organization and Description _2

Organization and Description of the Company Consolidation, Parent Ownership Interest (Details) - LPL Financial LLC [Member]	3 Months Ended
	Mar. 31, 2022
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership Interest Percentage In Subsidiary	100.00%
Number of States in which Entity Operates	50

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in Other Operating Liabilities	$ 41,945	$ 94,197
Shareholder Percent Ownership in Company	5.00%
Revenue from Related Parties	$ 1,600	1,400
Document Period End Date	Mar. 31, 2022
Related Party Transaction, Expenses from Transactions with Related Party	$ 1,900	400
Revision of Prior Period, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in Other Operating Liabilities		$ 6,700

Revenue - Commission Revenue Di

Revenue - Commission Revenue Disaggregated by Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Commission	$ 585,525	$ 557,229
Annuities [Member]
Disaggregation of Revenue [Line Items]
Commission	299,734	280,776
Mutual Funds [Member]
Disaggregation of Revenue [Line Items]
Commission	189,527	173,150
Fixed Income [Member]
Disaggregation of Revenue [Line Items]
Commission	25,205	32,162
Equities [Member]
Disaggregation of Revenue [Line Items]
Commission	34,633	38,911
Other [Member]
Disaggregation of Revenue [Line Items]
Commission	$ 36,426	$ 32,230

Revenue - Commission Revenue _2

Revenue - Commission Revenue Disaggregated by Product Category and Timing of Transfer of Good or Service (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Commission	$ 585,525	$ 557,229
Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	240,331	236,273
Over time [Member]
Disaggregation of Revenue [Line Items]
Commission	345,194	320,956
Annuities [Member]
Disaggregation of Revenue [Line Items]
Commission	299,734	280,776
Annuities [Member] | Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	106,733	95,539
Annuities [Member] | Over time [Member]
Disaggregation of Revenue [Line Items]
Commission	193,001	185,237
Mutual Funds [Member]
Disaggregation of Revenue [Line Items]
Commission	189,527	173,150
Mutual Funds [Member] | Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	47,545	47,279
Mutual Funds [Member] | Over time [Member]
Disaggregation of Revenue [Line Items]
Commission	141,982	125,871
Fixed Income [Member]
Disaggregation of Revenue [Line Items]
Commission	25,205	32,162
Fixed Income [Member] | Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	25,205	32,162
Equities [Member]
Disaggregation of Revenue [Line Items]
Commission	34,633	38,911
Equities [Member] | Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	34,633	38,911
Other [Member]
Disaggregation of Revenue [Line Items]
Commission	36,426	32,230
Other [Member] | Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Commission	26,215	22,382
Other [Member] | Over time [Member]
Disaggregation of Revenue [Line Items]
Commission	$ 10,211	$ 9,848

Revenue - Asset-based Revenue d

Revenue - Asset-based Revenue disaggregated by Product and Service (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Asset Based Fees	$ 296,401	$ 264,706
Client Cash Revenue [Member]
Disaggregation of Revenue [Line Items]
Asset Based Fees	84,716	97,104
Sponsorship Programs [Member]
Disaggregation of Revenue [Line Items]
Asset Based Fees	101,382	81,712
Recordkeeping [Member]
Disaggregation of Revenue [Line Items]
Asset Based Fees	$ 110,303	$ 85,890

Revenue - Transaction and Fee R

Revenue - Transaction and Fee Revenue Disaggregated by Timing of Transfer of Good or Service (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Transaction And Other Fees	$ 46,726	$ 44,120
Service and fee	112,812	96,824
Point-in-time [Member]
Disaggregation of Revenue [Line Items]
Transaction And Other Fees	31,807	23,275
Over time [Member]
Disaggregation of Revenue [Line Items]
Transaction And Other Fees	$ 81,005	$ 73,549

Revenue - Unearned Revenue Reco

Revenue - Unearned Revenue Recognized (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Unearned Revenue [Abstract]
Deferred Revenue, Revenue Recognized	$ 156.8

Acquisitions (Details)

Acquisitions (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Mar. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill		$ 1,642,468	$ 1,642,443
Waddell & Reed Financial, Inc.
Business Acquisition [Line Items]
Goodwill		128,600
Finite-lived intangible assets acquired		122,700
Payments to Acquire Businesses, Gross	$ 300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		$ 62,300

Fair Value Measurements - Finan

Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	$ 32,619	$ 39,274
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,317	12,056
Securities owned — trading	32,619	39,274
Other assets	605,214	623,288
Total assets at fair value	640,150	674,618
Securities sold, but not yet purchased	1,119
Accounts payable and accrued liabilities	3,609	3,530
Total liabilities at fair value	117,480	118,676
Other Liabilities, Fair Value Disclosure	113,871
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,317	12,056
Securities owned — trading	32,619	39,274
Other assets	595,870	614,122
Total assets at fair value	630,806	665,452
Securities sold, but not yet purchased	1,062
Accounts payable and accrued liabilities	0	0
Total liabilities at fair value	113,814	115,041
Other Liabilities, Fair Value Disclosure	113,814	115,041
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Securities owned — trading	0	0
Other assets	9,344	9,166
Total assets at fair value	9,344	9,166
Securities sold, but not yet purchased	57	0
Accounts payable and accrued liabilities	0	0
Total liabilities at fair value	57	105
Other Liabilities, Fair Value Disclosure	57	105
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Securities owned — trading	0	0
Other assets	0	0
Total assets at fair value	0	0
Securities sold, but not yet purchased	0	0
Accounts payable and accrued liabilities	3,609	3,530
Total liabilities at fair value	3,609	3,530
Other Liabilities, Fair Value Disclosure	0	0
Equity Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	136	105
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	136	0
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	105
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	0
Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	57	572
Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	467
Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	57	105
Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	0
Mutual Funds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	926	467
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	926	467
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	0
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities sold, but not yet purchased	0	0
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	19,543	19,599
Money Market Funds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	135	123
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	135	123
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Money Market Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Mutual Funds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	12,531	19,112
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	12,531	19,112
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Mutual Funds [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	410	440
Equity Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	410	440
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	410	440
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
U.S. treasury obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	135	123
U.S. treasury obligations [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	19,543	19,599
U.S. treasury obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	19,543	19,599
U.S. treasury obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
U.S. treasury obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities owned — trading	0	0
Deferred Compensation Plan | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	483,118	499,548
Deferred Compensation Plan | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	483,118	499,548
Deferred Compensation Plan | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Deferred Compensation Plan | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Other Investments | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	9,344	9,166
Other Investments | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Other Investments | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	9,344	9,166
Other Investments | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Fractional Shares | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	112,752	114,574
Securities sold, but not yet purchased		114,574
Other Liabilities, Fair Value Disclosure	112,752	115,146
Fractional Shares | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	112,752	114,574
Other Liabilities, Fair Value Disclosure	112,752	114,574
Fractional Shares | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Other Liabilities, Fair Value Disclosure	0
Fractional Shares | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	$ 0
Other Liabilities, Fair Value Disclosure	$ 0

Fair Value Measurements - Not M

Fair Value Measurements - Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Assets, not measured at fair value
Cash and cash equivalents	$ 1,009,693	$ 495,246	$ 839,144
Cash segregated under federal and other regulations	644,986	1,496,463	839,428
Restricted cash	92,393	80,655	$ 73,507
Receivables from clients, net	624,188	578,889
Receivables from brokers, dealers and clearing organizations	154,398	102,503
Advisor loans, net	970,368	963,869
Other receivables, net	587,601	581,483
Investment securities - held-to-maturity securities	11,090	9,918
Other assets	883,831	886,988
Liabilities, not measured at fair value
Payables to clients	1,568,025	1,712,224
Payables to broker-dealers and clearing organizations	149,237	170,119
Corporate debt and other borrowings, net	2,722,396	2,814,044
Financial instruments not measured at fair value
Assets, not measured at fair value
Cash and cash equivalents	1,007,376	483,190
Cash segregated under federal and other regulations	644,986	1,496,463
Restricted cash	92,393	80,655
Receivables from clients, net	624,188	578,889
Receivables from brokers, dealers and clearing organizations	154,398	102,503
Advisor loans, net	204,293	191,242
Other receivables, net	587,601	581,483
Investment securities - held-to-maturity securities	11,090	9,918
Other assets	21,542	14,553
Liabilities, not measured at fair value
Payables to clients	1,568,025	1,712,224
Payables to broker-dealers and clearing organizations	149,237	170,119
Corporate debt and other borrowings, net	2,722,396	2,814,044
Financial instruments not measured at fair value | Other Investments
Assets, not measured at fair value
Other assets	4,643	4,595
Financial instruments not measured at fair value | Securities borrowed
Assets, not measured at fair value
Other assets	9,898	9,958
Financial instruments not measured at fair value | Deferred Compensation Plan
Assets, not measured at fair value
Other assets	7,001
Financial instruments not measured at fair value | Total Fair Value
Assets, not measured at fair value
Cash and cash equivalents	1,007,376	483,190
Cash segregated under federal and other regulations	644,986	1,496,463
Restricted cash	92,393	80,655
Receivables from clients, net	624,188	578,889
Receivables from brokers, dealers and clearing organizations	154,398	102,503
Advisor loans, net	188,451	176,864
Other receivables, net	587,601	581,483
Investment securities - held-to-maturity securities	10,913	9,915
Other assets	21,542	14,553
Liabilities, not measured at fair value
Payables to clients	1,568,025	1,712,224
Payables to broker-dealers and clearing organizations	149,237	170,119
Corporate debt and other borrowings, net	2,662,503	2,885,536
Financial instruments not measured at fair value | Total Fair Value | Other Investments
Assets, not measured at fair value
Other assets	4,643	4,595
Financial instruments not measured at fair value | Total Fair Value | Securities borrowed
Assets, not measured at fair value
Other assets	9,898	9,958
Financial instruments not measured at fair value | Total Fair Value | Deferred Compensation Plan
Assets, not measured at fair value
Other assets	7,001
Financial instruments not measured at fair value | Fair Value, Inputs, Level 1 [Member]
Assets, not measured at fair value
Cash and cash equivalents	1,007,376	483,190
Cash segregated under federal and other regulations	644,986	1,496,463
Restricted cash	92,393	80,655
Receivables from clients, net	0	0
Receivables from brokers, dealers and clearing organizations	0	0
Advisor loans, net	0	0
Other receivables, net	0	0
Investment securities - held-to-maturity securities	0	0
Other assets	7,001	0
Liabilities, not measured at fair value
Payables to clients	0	0
Payables to broker-dealers and clearing organizations	0	0
Corporate debt and other borrowings, net	0	0
Financial instruments not measured at fair value | Fair Value, Inputs, Level 1 [Member] | Other Investments
Assets, not measured at fair value
Other assets	0	0
Financial instruments not measured at fair value | Fair Value, Inputs, Level 1 [Member] | Securities borrowed
Assets, not measured at fair value
Other assets	0	0
Financial instruments not measured at fair value | Fair Value, Inputs, Level 1 [Member] | Deferred Compensation Plan
Assets, not measured at fair value
Other assets	7,001
Financial instruments not measured at fair value | Fair Value, Inputs, Level 2 [Member]
Assets, not measured at fair value
Cash and cash equivalents	0	0
Cash segregated under federal and other regulations	0	0
Restricted cash	0	0
Receivables from clients, net	624,188	578,889
Receivables from brokers, dealers and clearing organizations	154,398	102,503
Advisor loans, net	0	0
Other receivables, net	587,601	581,483
Investment securities - held-to-maturity securities	10,913	9,915
Other assets	14,541	14,553
Liabilities, not measured at fair value
Payables to clients	1,568,025	1,712,224
Payables to broker-dealers and clearing organizations	149,237	170,119
Corporate debt and other borrowings, net	2,662,503	2,885,536
Financial instruments not measured at fair value | Fair Value, Inputs, Level 2 [Member] | Other Investments
Assets, not measured at fair value
Other assets	4,643	4,595
Financial instruments not measured at fair value | Fair Value, Inputs, Level 2 [Member] | Securities borrowed
Assets, not measured at fair value
Other assets	9,898	9,958
Financial instruments not measured at fair value | Fair Value, Inputs, Level 3 [Member]
Assets, not measured at fair value
Cash and cash equivalents	0	0
Cash segregated under federal and other regulations	0	0
Restricted cash	0	0
Receivables from clients, net	0	0
Receivables from brokers, dealers and clearing organizations	0	0
Advisor loans, net	188,451	176,864
Other receivables, net	0	0
Investment securities - held-to-maturity securities	0	0
Other assets	0	0
Liabilities, not measured at fair value
Payables to clients	0	0
Payables to broker-dealers and clearing organizations	0	0
Corporate debt and other borrowings, net	0	0
Financial instruments not measured at fair value | Fair Value, Inputs, Level 3 [Member] | Other Investments
Assets, not measured at fair value
Other assets	0	0
Financial instruments not measured at fair value | Fair Value, Inputs, Level 3 [Member] | Securities borrowed
Assets, not measured at fair value
Other assets	$ 0	$ 0

Investment Securities - Summary

Investment Securities - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Trading securities - at fair value:
Securities owned — trading	$ 32,619	$ 39,274
Held-to-maturity securities - at amortized cost:
Total held-to-maturity securities	11,090	9,918
Short-term Investments	43,709	49,192
Money Market Funds [Member]
Trading securities - at fair value:
Securities owned — trading	19,543	19,599
Mutual funds
Trading securities - at fair value:
Securities owned — trading	12,531	19,112
Equity Securities [Member]
Trading securities - at fair value:
Securities owned — trading	410	440
U.S. treasury obligations [Member]
Trading securities - at fair value:
Securities owned — trading	135	123
Held-to-maturity securities - at amortized cost:
Total held-to-maturity securities	11,090
US Government Agencies Debt Securities
Held-to-maturity securities - at amortized cost:
Total held-to-maturity securities	$ 11,090	$ 9,918

Held-to-Maturity Securities (De

Held-to-Maturity Securities (Details 1) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Maturities of securities held-to-maturity
U.S. government notes - at amortized cost, Total	$ 11,090	$ 9,918
U.S. Treasury Securities [Member]
Maturities of securities held-to-maturity
U.S. government notes - at amortized cost, Within one year	5,522
U.S. government notes - at amortized cost, After one but within five years	5,568
U.S. government notes - at amortized cost, After five but within ten years	0
U.S. government notes - at amortized cost, Total	11,090
U.S. government notes - at fair value, Within one year	5,507
U.S. government notes - at fair value, After one but within five years	5,406
U.S. government notes - at fair value, After five but within ten years	0
U.S. government notes - at fair value, Total	10,913
US Government Agencies Debt Securities
Maturities of securities held-to-maturity
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10	0
U.S. government notes - at amortized cost, Total	11,090	$ 9,918
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10	$ 0

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Details Textures) - USD ($) $ in Thousands	Apr. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Total amortization expense of intangible assets		$ 21,196	$ 17,431
Goodwill		1,642,468		$ 1,642,443
Waddell & Reed Financial, Inc.
Business Acquisition [Line Items]
Weighted-Average Life Remaining (in years)	9 years
Payments to Acquire Businesses, Gross	$ 300,000
Goodwill		128,600
Finite-lived intangible assets acquired		$ 122,700

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Goodwill (Details) $ in Thousands	Mar. 31, 2022USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,642,443
Goodwill, ending balance	$ 1,642,468

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Intangible Assets (Components) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Indefinite-lived Intangible Assets
Total intangible assets	$ 433,925	$ 455,028

Other Assert and Other Liabil_3

Other Assert and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other assets:
Deferred compensation	$ 490,119	$ 499,548
Fractional shares - investment	112,752	114,574
Prepaid assets	123,684	115,018
Operating lease assets	92,093	95,075
Debt issuance costs, net	6,841	7,303
Deferred Income Tax Assets, Net	5,867	5,648
Other	52,475	49,822
Total other assets	$ 883,831	$ 886,988
Operating lease assets [Extensible List]	Total other assets	Total other assets
Other liabilities:
Deferred compensation	$ 491,423	$ 499,245
Unearned revenue	182,506	160,926
Operating lease liabilities	126,689	130,304
Fractional shares - repurchase obligation	112,752	114,574
Finance lease liabilities	105,911	106,067
Other	37,169	7,160
Total other liabilities	$ 1,056,450	$ 1,018,276
Operating lease liabilities [Extensible List]	Total other liabilities	Total other liabilities
Finance lease liabilities [Extensible List]	Total other liabilities	Total other liabilities

Long-term and Other Borrowing_2

Long-term and Other Borrowings (Long-Term Borrowings Outstanding) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	May 18, 2021	Mar. 15, 2021
Borrowings [Line Items]
Long-TermSeniorDebtGross	$ 2,745,925	$ 2,748,600
Less Unamortized Debt Issuance Cost	(23,529)	(24,556)
Long-Term Senior Debt, Net	2,722,396	2,724,044
Long-term Debt	2,722,396	2,814,044
Other Long-term Debt	0	90,000
Secured Debt [Member] | Fourth Amendment Agreement Term Loan B [Member]
Borrowings [Line Items]
Long-TermSeniorDebtGross	$ 1,045,925	$ 1,048,600
Variable Interest Rate (as percent)	1.98%	1.85%
Secured Debt [Member] | Fourth Amendment Agreement Term Loan B [Member] | London Interbank Offered Rate (LIBOR) [Member]
Borrowings [Line Items]
Applicable interest rate margin (as percent)	1.75%
Unsecured Debt [Member] | Senior Notes Due 2027 [Member]
Borrowings [Line Items]
Long-TermSeniorDebtGross	$ 400,000	$ 400,000
Fixed Interest Rate (as percent)	4.63%	4.63%
Unsecured Debt [Member] | Senior Notes Due 2029
Borrowings [Line Items]
Long-TermSeniorDebtGross	$ 900,000	$ 900,000
Fixed Interest Rate (as percent)	4.00%	4.00%		4.00%
Unsecured Debt [Member] | Senior Notes Due 2031
Borrowings [Line Items]
Long-TermSeniorDebtGross	$ 400,000	$ 400,000
Fixed Interest Rate (as percent)	4.38%	4.38%	4.375%
Line of Credit
Borrowings [Line Items]
Other Long-term Debt		$ 55,000
Revolving Credit Facility [Member] | Line of Credit
Borrowings [Line Items]
Applicable interest rate margin (as percent)	0.25%	0.25%
Variable Interest Rate (as percent)	3.50%	3.50%
Other Long-term Debt	$ 0
Unsecured Debt [Member] | Line of Credit
Borrowings [Line Items]
Applicable interest rate margin (as percent)	0.75%	0.75%
Variable Interest Rate (as percent)	1.00%	1.00%
Other Long-term Debt	$ 0	$ 35,000

Long-term and Other Borrowing_3

Long-term and Other Borrowings (Other Borrowings Outstanding) (Details) - Line of Credit $ in Millions	Mar. 31, 2022USD ($)
Revolving Credit Facility [Member] | Senior Secured, Revolving Credit Facility Due March 2026
Line of Credit Facility [Line Items]
Outstanding	$ 0
Available	1,000
Revolving Credit Facility [Member] | Broker-Dealer, Revolving Credit Facility Due July 2024
Line of Credit Facility [Line Items]
Outstanding	0
Available	300
Secured Debt [Member] | Secured, Uncommitted Lines of Credit, No Maturity, One
Line of Credit Facility [Line Items]
Outstanding	0
Secured Debt [Member] | Secured, Uncommitted Lines of Credit, No Maturity, Two
Line of Credit Facility [Line Items]
Outstanding	0
Unsecured Debt [Member] | Unsecured, Uncommitted Lines of Credit Due September 2021, One
Line of Credit Facility [Line Items]
Outstanding	0
Available	75
Unsecured Debt [Member] | Unsecured, Uncommitted Lines of Credit Due September 2021, Two
Line of Credit Facility [Line Items]
Outstanding	0
Available	50
Unsecured Debt [Member] | Unsecured, Uncommitted Lines of Credit, No Maturity
Line of Credit Facility [Line Items]
Outstanding	0
Available	$ 75

Long-term and Other Borrowing_4

Long-term and Other Borrowings (Credit Agreement Textuals) (Details) - USD ($) $ in Thousands	Mar. 15, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	May 18, 2021
Borrowings [Line Items]
Gain (Loss) on Extinguishment of Debt		$ 0	$ (24,400)
Revolving Credit Facility [Member]
Borrowings [Line Items]
Debt Issuance Costs, Gross	$ 3,200
Line of credit, maximum borrowing capacity	1,000,000
Unsecured Debt [Member] | Senior Notes Due 2029
Borrowings [Line Items]
Long-term Debt, Gross	$ 900,000
Fixed Interest Rate (as percent)	4.00%	4.00%		4.00%
Debt Issuance Costs, Gross	$ 9,000
Gain (Loss) on Extinguishment of Debt	$ (24,400)
Unsecured Debt [Member] | Senior Notes Due 2027 [Member]
Borrowings [Line Items]
Fixed Interest Rate (as percent)		4.63%		4.63%
Unsecured Debt [Member] | Senior Notes Due 2031
Borrowings [Line Items]
Long-term Debt, Gross					$ 400,000
Fixed Interest Rate (as percent)		4.38%		4.38%	4.375%
Debt Issuance Costs, Gross					$ 3,800

Long-term and Other Borrowing_5

Long-term and Other Borrowings - Revolving Credit Facility (Details) - Revolving Credit Facility [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 15, 2021	Jul. 31, 2019
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity		$ 1,000
LPL Financial LLC [Member]
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity			$ 300
Minimum [Member] | Eurodollar Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Minimum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Minimum [Member] | LPL Financial LLC [Member] | Federal Funds Rate
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.125%
Maximum [Member] | Eurodollar Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Maximum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Maximum [Member] | LPL Financial LLC [Member] | Eurodollar Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.375%

Long-term and Other Borrowing_6

Long-term and Other Borrowings - Line of Credit (Bank Loans Payable Textuals) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Line of Credit Facility [Line Items]
Total number of uncommitted lines of credit	5
Number of uncommitted lines of credit with an unspecified limit	2
Line of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 200

Commitments and Contingencies (

Commitments and Contingencies (Legal) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Self Insurance Reserve	$ 68.4	$ 67.2

Commitments and Contingencies_2

Commitments and Contingencies (Other Commitments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Brokers and Dealers [Abstract]
Collateral securities	$ 539,100
Collateral security (Fair value)	754,700
Amount pledged with client-owned securities	74,400
Remaining collateral securities that can be re-pledged, loaned, or sold	680,300
Financial Instruments Owned and Pledged as Collateral [Line Items]
Remaining collateral securities that can be re-pledged, loaned, or sold	680,300
Self Insurance, Claims Incurred	9,100
Investment securities	43,709	$ 49,192
Self Insurance, Transfers and Adjustments	7,900
Options Clearing Corporation [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Marketable Securities	4,500		$ 4,600
National Securities Clearing Corporation [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Marketable Securities	$ 15,000

Stockholders' Equity (Dividends

Stockholders' Equity (Dividends Paid) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.25	$ 0.25
Dividends, Common Stock [Abstract]
Cash dividends on common stock	$ 20,013	$ 19,980

Stockholdes' Equity (Share Repu

Stockholdes' Equity (Share Repurchases) (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)$ / sharesshares
Stockholders' Equity Note [Abstract]
Amount Remaining	$ 209,800
Treasury stock purchased	$ 50,006
Shares Purchased | shares	292,163
Weighted-Average Price Paid Per Share | $ / shares	$ 171.16
Document Period End Date	Mar. 31, 2022

Share-Based Compensation (Texua

Share-Based Compensation (Texuals) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based compensation:
Authorized shares	17,754,197
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	13,807,670
Employees, officers and directors [Member] | Restricted Stock [Member]
Share-based compensation:
Share-based compensation expense	$ 11.9	$ 10.2
Share-based compensation cost unrecognized	$ 91.1
Non-vested compensation cost weighted-average period	2 years 4 months 6 days
Employees, officers and directors [Member] | Stock options and warrants [Member]
Share-based compensation:
Share-based compensation expense	$ 0.2	$ 0.8
Advisors and Financial Institutions [Member] | Restricted stock units (RSUs) [Member]
Share-based compensation:
Share-based compensation expense	0.6
Share-based compensation cost unrecognized	$ 4.2
Non-vested compensation cost weighted-average period	1 year 11 months 19 days

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Option and Warrant Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares Outstanding, Ending Balance | shares	1,019,430
Stock options and warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares Outstanding, Beginning Balance | shares	1,204,420
Number of Shares, Granted | shares	0
Number of Shares, Exercised | shares	(183,557)
Number of Shares, Forfeited | shares	(1,433)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighed-Average Exercise Price, Beginning Balance | $ / shares	$ 45.65
Weighted-Average Exercise Price, Granted | $ / shares	0
Weighted-Average Exercise Price, Exercised | $ / shares	34.10
Weighted-Average Exercise Price, Forfeited | $ / shares	77.53
Weighed-Average Exercise Price, Ending Balance | $ / shares	$ 47.69
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Number of Shares Exercisable, Ending Balance | shares	1,019,430
Weighted-Average Exercise Price, Exercisable | $ / shares	$ 47.69
Weighted-Average Remaining Contractual Term, Options Exercisable	4 years 7 months 13 days
Aggregate Intrinsic Value, Exercisable, Ending Balance | $	$ 137,615
Weighted-Average Remaining Contractual Term, Options Outstanding	4 years 7 months 13 days
Aggregate Intrinsic Value, Outstanding, Ending Balance | $	$ 137,615
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number of Shares Exercisable and expect to vest | shares	1,019,430
Weighed-Average Exercise Price, Excercisable and expect to vest | $ / shares	$ 47.69
Weighted-Average Remaining Contractual Term, Exercisable and expected to vest	4 years 7 months 13 days
Aggregate Intrinsic Value, Exercisable and expected to vest, Ending Balance | $	$ 137,615

Share-Based Compensation - Outs

Share-Based Compensation - Outstanding Stock Options and Warrant Information (Details)	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	1,019,430
Number of shares, Exercisable | shares	1,019,430
Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Weighted-average remaining life (years), Outstanding	4 years 7 months 13 days
Weighted-average exercise price, Outstanding | $ / shares	$ 47.69
Weighted-average exercise price, Exercisable | $ / shares	$ 47.69
$19.85 - $25.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	194,626
Weighted-average remaining life (years), Outstanding	3 years 10 months 28 days
Weighted-average exercise price, Outstanding | $ / shares	$ 19.85
Number of shares, Exercisable | shares	194,626
Weighted-average exercise price, Exercisable | $ / shares	$ 19.85
$25.01 - $35.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	119,333
Weighted-average remaining life (years), Outstanding	7 months 28 days
Weighted-average exercise price, Outstanding | $ / shares	$ 29.38
Number of shares, Exercisable | shares	119,333
Weighted-average exercise price, Exercisable | $ / shares	$ 29.38
$35.01 - $45.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	240,094
Weighted-average remaining life (years), Outstanding	4 years 11 months 12 days
Weighted-average exercise price, Outstanding | $ / shares	$ 39.48
Number of shares, Exercisable | shares	240,094
Weighted-average exercise price, Exercisable | $ / shares	$ 39.48
$45.01 - $65.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	77,091
Weighted-average remaining life (years), Outstanding	2 years 6 months 21 days
Weighted-average exercise price, Outstanding | $ / shares	$ 48.92
Number of shares, Exercisable | shares	77,091
Weighted-average exercise price, Exercisable | $ / shares	$ 48.92
$65.01 - $75.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	175,319
Weighted-average remaining life (years), Outstanding	5 years 10 months 20 days
Weighted-average exercise price, Outstanding | $ / shares	$ 65.50
Number of shares, Exercisable | shares	175,319
Weighted-average exercise price, Exercisable | $ / shares	$ 65.50
$75.01 - $80.00 | Stock options and warrants [Member]
Summary information about outstanding stock options and warrants
Total number of shares, Outstanding | shares	212,967
Weighted-average remaining life (years), Outstanding	6 years 9 months 14 days
Weighted-average exercise price, Outstanding | $ / shares	$ 77.53
Number of shares, Exercisable | shares	212,967
Weighted-average exercise price, Exercisable | $ / shares	$ 77.53

Share-Based Compensation - Rest

Share-Based Compensation - Restricted Stock Activity (Details)	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Stock units vested and undistributed	72,516
Restricted stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Beginning Balance	1,051
Number of Shares, Granted	0
Number of Shares, Vested	0
Number of Shares, Forfeited	0
Number of Shares, Ending Balance	1,051
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Grant-Date Fair Value, Beginning Balance | $ / shares	$ 156.54
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	0
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	0
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	0
Weighted-Average Grant-Date Fair Value, Ending Balance | $ / shares	$ 156.54
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	1,051
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price | $ / shares	$ 156.54
Restricted stock units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Beginning Balance	915,907
Number of Shares, Granted	319,536
Number of Shares, Vested	(279,955)
Number of Shares, Forfeited	(22,122)
Number of Shares, Ending Balance	933,366
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Grant-Date Fair Value, Beginning Balance | $ / shares	$ 110.62
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	186.84
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	102.38
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	123.56
Weighted-Average Grant-Date Fair Value, Ending Balance | $ / shares	$ 138.87
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	800,618
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price | $ / shares	$ 144.54

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 133,744	$ 129,620
Basic weighted-average number of shares outstanding	79,976	79,697
Dilutive common share equivalents	1,596	1,925
Diluted weighted-average number of shares outstanding	81,572	81,622
Basic earnings per share	$ 1.67	$ 1.63
Diluted earnings per share	$ 1.64	$ 1.59

Earnings per Share (Textuals) (

Earnings per Share (Textuals) (Details) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of Earnings per Share amount	60,275	88,853

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Related Party Transaction [Line Items]
Shareholder Percent Ownership in Company	5.00%
Revenue from related party transactions	$ 1,600	$ 1,400
Related party transactions expenses	$ 1,900	$ 400

Net Capital and Regulatory Re_2

Net Capital and Regulatory Requirements (Details) $ in Thousands	Mar. 31, 2022USD ($)
Net Capital and Regulatory Requirements [Line Items]
Broker-Dealer, Net Capital	$ 156,500
Broker-Dealer, Excess Net Capital, Alternative Standard	141,200
Broker-Dealer, Minimum Net Capital Required, Broker-Dealer Subsidiary, Aggregate Indebtedness Standard	$ 15,300