XML 74 R61.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Revenues from Contracts with Customers (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | $ 404,830,000 | $ 372,331,000 | $ 810,428,000 | $ 732,315,000 |
Deferred contract costs | 21,521,000 |  | 21,521,000 |  | $ 0
Capitalized contract cost, amount capitalized during period | 2,267,000 |  | 4,083,000 |  |
Amortization of deferred contract costs | 619,000 |  | 1,201,000 |  |
Capitalized contract cost impairment |  |  | 0 |  |
United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 335,266,000 |  | 671,014,000 |  |
United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 42,899,000 |  | 85,211,000 |  |
Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 13,650,000 |  | 27,922,000 |  |
Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 12,684,000 |  | 25,112,000 |  |
Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 331,000 |  | 1,169,000 |  |
Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 123,468,000 |  | 247,159,000 |  |
Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 93,840,000 |  | 187,795,000 |  |
Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 88,686,000 |  | 176,523,000 |  |
Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 44,557,000 |  | 89,625,000 |  |
Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 37,823,000 |  | 74,790,000 |  |
Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 6,176,000 |  | 13,482,000 |  |
Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 10,280,000 |  | 21,054,000 |  |
Private Banks |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 121,126,000 | 116,184,000 | 243,290,000 | 228,818,000 |
Private Banks | United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 75,669,000 |  | 153,802,000 |  |
Private Banks | United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 29,005,000 |  | 56,530,000 |  |
Private Banks | Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 11,516,000 |  | 23,117,000 |  |
Private Banks | Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 4,936,000 |  | 9,841,000 |  |
Private Banks | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Private Banks | Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 35,164,000 |  | 70,354,000 |  |
Private Banks | Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 214,000 |  | 412,000 |  |
Private Banks | Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 375,000 |  | 757,000 |  |
Private Banks | Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 43,915,000 |  | 88,500,000 |  |
Private Banks | Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 35,453,000 |  | 70,055,000 |  |
Private Banks | Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 4,195,000 |  | 9,614,000 |  |
Private Banks | Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 1,810,000 |  | 3,598,000 |  |
Investment Advisors |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 99,890,000 | 92,746,000 | 199,082,000 | 180,984,000 |
Investment Advisors | United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 99,890,000 |  | 199,082,000 |  |
Investment Advisors | United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 72,481,000 |  | 144,899,000 |  |
Investment Advisors | Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 23,389,000 |  | 46,153,000 |  |
Investment Advisors | Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Advisors | Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 4,020,000 |  | 8,030,000 |  |
Institutional Investors |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 83,434,000 | 78,068,000 | 168,925,000 | 155,072,000 |
Institutional Investors | United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 64,048,000 |  | 128,816,000 |  |
Institutional Investors | United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 13,894,000 |  | 28,681,000 |  |
Institutional Investors | Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 2,134,000 |  | 4,805,000 |  |
Institutional Investors | Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 3,027,000 |  | 5,454,000 |  |
Institutional Investors | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 331,000 |  | 1,169,000 |  |
Institutional Investors | Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 15,347,000 |  | 31,205,000 |  |
Institutional Investors | Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 67,608,000 |  | 136,884,000 |  |
Institutional Investors | Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Institutional Investors | Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Institutional Investors | Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Institutional Investors | Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Institutional Investors | Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 479,000 |  | 836,000 |  |
Investment Managers |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 97,566,000 | 83,616,000 | 194,421,000 | 164,103,000 |
Investment Managers | United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 92,845,000 |  | 184,604,000 |  |
Investment Managers | United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Managers | Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Managers | Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 4,721,000 |  | 9,817,000 |  |
Investment Managers | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investment Managers | Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 239,000 |  | 239,000 |  |
Investment Managers | Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 80,000 |  | 163,000 |  |
Investment Managers | Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 88,311,000 |  | 175,766,000 |  |
Investment Managers | Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 642,000 |  | 1,125,000 |  |
Investment Managers | Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 2,370,000 |  | 4,735,000 |  |
Investment Managers | Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 1,981,000 |  | 3,868,000 |  |
Investment Managers | Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 3,943,000 |  | 8,525,000 |  |
Investments In New Businesses |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 2,814,000 | $ 1,717,000 | 4,710,000 | $ 3,338,000 |
Investments In New Businesses | United States |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 2,814,000 |  | 4,710,000 |  |
Investments In New Businesses | United Kingdom |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Canada |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Ireland |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Investment management fees from pooled investment products |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 237,000 |  | 462,000 |  |
Investments In New Businesses | Investment management fees from investment management agreements |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 2,549,000 |  | 4,183,000 |  |
Investments In New Businesses | Investment operations fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Investment processing fees - PaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Investment processing fees - SaaS |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Professional services fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | 0 |  | 0 |  |
Investments In New Businesses | Account fees and other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues | $ 28,000 |  | $ 65,000 |  |

X
- Definition Capitalized Contract Cost, Amount Capitalized During Period + References No definition available. + Details
Name: | seic_CapitalizedContractCostAmountCapitalizedDuringPeriod
Namespace Prefix: | seic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
Name: | us-gaap_CapitalizedContractCostAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
Name: | us-gaap_CapitalizedContractCostImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
Name: | us-gaap_CapitalizedContractCostNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_IE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=seic_OtherGeographicAreasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_InvestmentManagementFeesFromInvestmentProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_InvestmentManagementFeesFromInvestmentManagementAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_InvestmentOperationsFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_InvestmentProcessingFeesPaaSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_InvestmentProcessingFeesSaaSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_ProfessionalServicesFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=seic_AccountFeesAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=seic_PrivateBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=seic_InvestmentAdvisorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=seic_InstitutionalInvestorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=seic_InvestmentManagersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=seic_InvestmentsInNewBusinessesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |