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v3.20.2

Significant Transactions (Details) |  |  |  |  |  |  |  |  |  | 3 Months Ended | 5 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 07, 2020 USD ($) | Apr. 07, 2020 USD ($) | Jun. 28, 2019 USD ($) | Apr. 04, 2019 USD ($) | Apr. 01, 2019 USD ($) | Feb. 26, 2019 USD ($) | Dec. 03, 2018 USD ($) | May 18, 2018 USD ($) | May 11, 2018 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) earnout_period | Dec. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | May 31, 2019 USD ($) | Apr. 03, 2019 USD ($) | Dec. 31, 2018 USD ($) | Feb. 05, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of Intangible Assets, Finite-lived |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (10,400,000) |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  | 53.80% | 50.00% | 50.00% |  |  |  | 53.80% |  | 50.00% |  |  |  |
Commitment to Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 125,000,000.0
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 120,300,000 | $ 243,400,000 |  |  |  |  |
Stock Issued During Period, Value, Acquisitions | $ 15,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |  | $ 82,500,000 |  |  |  | 82,500,000 |  |  |  |  |
Payments to acquire business, net |  |  |  | $ 81,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  | $ 518,200,000 |  | $ 394,700,000 |  |  |  | 518,200,000 |  | $ 394,700,000 |  |  |  |
Total commitment under revolving credit facility |  | $ 291.4 |  |  |  |  |  |  |  |  | $ 234,000,000.0 |  |  |  |  |  |  |  |  |  |  |
NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in fair value of contingent consideration earnout liabilities |  |  |  |  |  |  |  |  |  | (1,700,000) |  |  | 6,300,000 |  | $ 2,600,000 | 2,300,000 | 7,600,000 |  |  |  |  |
Payment for contingent consideration liability |  |  |  |  |  |  |  |  |  |  |  |  | 2,600,000 |  |  | 6,400,000 | 2,600,000 |  |  |  |  |
Contingent consideration earnout liabilities |  |  |  |  |  |  |  |  |  | 11,700,000 |  | 20,600,000 |  |  |  | 11,700,000 |  | 20,600,000 |  |  |  |
White Mountains |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Investments |  |  |  |  |  |  |  |  |  | 898,100,000 |  | $ 856,300,000 |  |  |  | 898,100,000 |  | 856,300,000 |  |  |  |
MediaAlpha |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 48.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 61.00% |
Fully diluted ownership interest (as a percent) |  |  |  |  |  | 42.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58.90% |
Proceeds from dividends received |  |  |  |  |  | $ 89,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net gain from sale of discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 67,500,000 |  |  |  |  |  |  |  |
Assets, fair value |  |  |  |  |  | $ 114,700,000 |  |  |  |  |  |  |  | 114,700,000 |  |  |  |  |  |  |  |
Unrealized investment gain |  |  |  |  |  |  |  |  |  | $ 15,000,000.0 |  |  |  | 114,700,000 |  | $ 45,000,000.0 | 114,700,000 | $ 180,000,000.0 |  |  |  |
Total realized and unrealized gain on sale of minority stake |  |  |  |  |  |  |  |  |  |  | 182,200,000 |  |  |  |  |  |  |  |  |  |  |
Elementum Holdings, L.P. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  | 30.00% |  | 30.00% |  |  |  | 30.00% |  | 30.00% | 30.00% |  |  |
Other Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 55,100,000 |  |  |
Insurance-Linked Securities Funds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment to Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000.0 |  |  |
Elementum Funds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, aggregate cost |  |  |  |  |  |  |  |  |  | $ 52,100,000 |  |  |  |  |  | $ 52,100,000 |  |  |  |  |  |
NSM Insurance HoldCo, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  | 96.60% |  | 96.40% |  |  |  | 96.60% |  | 96.40% |  |  |  |
Fully diluted ownership interest (as a percent) |  |  |  |  |  |  |  |  |  | 89.60% |  | 88.40% |  |  |  | 89.60% |  | 88.40% |  |  |  |
AIG Collector Car Business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets acquired |  |  | $ 82,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Intangible Assets |  |  | 82,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AIG Collector Car Business | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  | 22,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AIG Collector Car Business | White Mountains |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  | 59,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Kudu investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  | 99.10% |  |  |  |  |  |  |  | 49.50% |  |  |  |  |  | 49.50% |  | 49.50% |  | 49.50%
Assets acquired |  |  |  | $ 155,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities acquired |  |  |  | 800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest acquired |  |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fully diluted ownership interest (as a percent) |  |  |  | 85.40% |  |  |  |  |  |  |  | 42.70% |  |  |  |  |  | 42.70% |  | 42.70% |  | 42.70%
Unfunded capital commitment |  |  |  | $ 250,000,000.0 |  |  |  |  |  | $ 94,500,000 |  | $ 129,000,000.0 |  |  |  | $ 94,500,000 |  | $ 129,000,000.0 |  | $ 250,000,000.0 |  |
Goodwill |  |  |  | 7,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  | $ 2,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Capital Commitment |  |  |  |  |  |  |  |  |  |  |  | 100,000,000.0 |  |  |  |  |  |  |  |  |  |
Funded Capital Commitment |  |  |  |  |  |  |  |  |  |  |  | 350,000,000.0 |  |  |  |  |  | 350,000,000.0 |  |  |  |
NSM Bank Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 100,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
NSM Bank Facility | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | 273,400,000 | 220,700,000 | 221,300,000 | 222,300,000 | 186,400,000 |  | 273,400,000 | 222,300,000 | 221,300,000 |  |  | $ 180,400,000 |
NSM Bank Facility | Term Loan | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 276,400,000 |  |  |  |  |  |  |  | 273,400,000 | $ 224,000,000.0 | 221,300,000 |  |  |  | 273,400,000 |  | 221,300,000 |  |  |  |
Proceeds from borrowings |  |  |  |  |  |  |  |  |  | 52,400,000 |  |  | 42,900,000 |  |  | 52,400,000 | 42,900,000 |  |  |  |  |
Kudu Debt [Member] | Delayed Draw Term Loans [Member] | Kudu |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total commitment under revolving credit facility |  |  |  |  |  |  |  |  |  |  |  | 125,000,000.0 |  |  |  |  |  | 125,000,000.0 |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  |  |  |  | 51,000,000.0 |  | 68,000,000.0 |  |  |  | 51,000,000.0 |  | 68,000,000.0 |  |  |  |
NSM Insurance HoldCo, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  | 95.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  |  | $ 29,000,000.0 |  | $ 274,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Fully diluted ownership interest (as a percent) |  |  |  |  |  |  |  |  | 83.60% |  |  |  |  |  |  |  |  |  |  |  |  |
KBK Insurance Group, Inc. & KBK Premium Services, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  |  |  | 60,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and intangible assets acquired |  |  |  |  |  |  | 59,400,000 |  |  |  |  |  |  | 32,600,000 |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  |  |  |  | $ 30,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 32,700,000 |  |  |  |  |  |  |  |
Contingent consideration earnout liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,900,000 |  |  |  |  |  |  |  |
Fresh Insurance Services Group Limited |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, aggregate cost |  |  |  |  |  |  |  | $ 49,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 700,000 |  |  |  |  |
Number of earnout periods | earnout_period |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  |  |  |  |  | $ 51,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Embrace Pet Insurance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and intangible assets acquired |  |  |  |  | $ 67,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets acquired |  |  |  |  | 15,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 52,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Embrace Pet Insurance | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  |  |  |  | 58,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  |  | $ 20,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire businesses, gross |  |  |  |  | $ 71,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Embrace Pet Insurance | NSM Bank Facility | Term Loan | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  |  |  |  |  |  |  |  |  |  | 20,400,000 |  |  |  |  |  |  |  |  |
Kingsbridge [Member] | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  | 80,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and intangible assets acquired |  | $ 125,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Kingsbridge [Member] | NSM Bank Facility | Term Loan | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  |  |  |  |  |  |  |  |  | 52,400,000 |  |  |  |  |  |  |  |  |  |  |  |
Other Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions of businesses |  |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  | 0 | 26,800,000 |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss) |  |  |  |  |  |  |  |  |  | 100,000 |  |  | 200,000 |  |  | (400,000) | 500,000 |  |  |  |  |
Measurement Period Adjustments |  |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  | 0 | 5,900,000 |  |  |  |  |
Impairment of Intangible Assets, Finite-lived |  |  |  |  |  |  |  |  |  | (6,200,000) |  |  |  |  |  | (6,200,000) |  | (2,800,000) |  |  |  |
Intangible Assets, Net (Excluding Goodwill) |  |  |  |  |  |  |  |  |  | 241,700,000 | $ 254,400,000 | 260,000,000.0 | 239,000,000.0 | 160,500,000 |  | 241,700,000 | 239,000,000.0 | 260,000,000.0 |  |  | 157,600,000 |
Deconsolidation of Business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (23,500,000) |  |  |  |  |
Amortization |  |  |  |  |  |  |  |  |  | (6,600,000) |  |  | (4,200,000) |  |  | (11,700,000) | (10,800,000) |  |  |  |  |
Renewal Rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions of businesses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |
Goodwill and intangible assets acquired |  |  | $ 82,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |  | 82,500,000 |  |  |  | 82,500,000 |  |  |  |  |
Intangible Asset and Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions of businesses |  |  |  |  |  |  |  |  |  | 125,100,000 |  |  | 80,400,000 |  |  | 0 | 0 |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,100,000 | 93,800,000 |  |  |  |  |
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss) |  |  |  |  |  |  |  |  |  | 800,000 |  |  | (1,000,000.0) |  |  | (2,200,000) | 500,000 |  |  |  |  |
Measurement Period Adjustments |  |  |  |  |  |  |  |  |  | 0 |  |  | (300,000) |  |  | 200,000 | 5,900,000 |  |  |  |  |
Impairment of Intangible Assets, Finite-lived |  |  |  |  |  |  |  |  |  | (6,200,000) |  |  |  |  |  | (6,200,000) |  |  |  |  |  |
Intangible Assets, Gross (Including Goodwill) |  |  |  |  |  |  |  |  |  | 759,900,000 | 646,800,000 | 654,700,000 | 667,600,000 | 510,200,000 |  | 759,900,000 | 667,600,000 | 654,700,000 |  |  | 537,500,000 |
Deconsolidation of Business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (41,800,000) |  |  |  |  |
Amortization |  |  |  |  |  |  |  |  |  | (6,600,000) |  |  | (4,200,000) |  |  | (11,700,000) | (10,800,000) |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions of businesses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | (26,800,000) |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  |  |  |  | 125,100,000 |  |  | 80,400,000 |  |  | 125,100,000 | 93,800,000 |  |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  |  | 700,000 |  |  | (1,200,000) |  |  | (1,800,000) | 0 |  |  |  |  |
Measurement Period Adjustments |  |  |  |  |  |  |  |  |  | 0 |  |  | (300,000) |  |  | 200,000 |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  | $ 518,200,000 | $ 392,400,000 | $ 394,700,000 | $ 428,600,000 | $ 349,700,000 |  | 518,200,000 | 428,600,000 | 394,700,000 |  |  | $ 379,900,000 |
Deconsolidation of Business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (18,300,000) |  |  |  |  |
Goodwill | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (1,800,000) |  | $ 1,400,000 |  |  |  |
United Kingdom, Pounds | NSM Bank Facility | Term Loan | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 42,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United Kingdom, Pounds | Kingsbridge [Member] | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  | 107,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  | 42,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | NSM Bank Facility | Term Loan | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 52,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Kingsbridge [Member] | NSM Holding Co LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses and Interest in Affiliates |  | 132,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings |  | $ 52,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Measurement Input, Revenue Multiple [Member] | Other [Member] | Maximum | Standard Poors NR Rating |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Securities, FV-NI, Measurement Input |  |  |  |  |  |  |  |  |  | 4 |  | 4 |  |  |  | 4 |  | 4 |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition This element represents the aggregate cost of investments accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(a)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(9)(a)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(7)(c)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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