Fair Value Measurements - Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Liability	$ (29,981)	$ (6,962)
Recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)	(4,380)	(29,380)
Corporate Owned Life Insurance Asset	2,022
Mutual Funds Asset	6,483
Deferred Compensation Liability	(8,568)
Recurring basis \| Quoted Prices in Active Markets for Identical Assets and Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)	0	0
Corporate Owned Life Insurance Asset	0
Mutual Funds Asset	6,483
Deferred Compensation Liability	0
Recurring basis \| Significant Other Observable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)	0	0
Corporate Owned Life Insurance Asset	2,022
Mutual Funds Asset	0
Deferred Compensation Liability	(8,568)
Recurring basis \| Significant Unobservable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out Liability (due to affiliates)	(4,380)	(29,380)
Corporate Owned Life Insurance Asset	0
Mutual Funds Asset	0
Deferred Compensation Liability	0
Recurring basis \| Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset	90	5,245
Interest Rate Swap Liability	(29,981)	(6,962)
Recurring basis \| Interest Rate Swap \| Quoted Prices in Active Markets for Identical Assets and Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset	0	0
Interest Rate Swap Liability	0	0
Recurring basis \| Interest Rate Swap \| Significant Other Observable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset	90	5,245
Interest Rate Swap Liability	(29,981)	(6,962)
Recurring basis \| Interest Rate Swap \| Significant Unobservable Inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Asset	0	0
Interest Rate Swap Liability	$ 0	$ 0

Deferred Compensation Liability, Fair Value Disclosure

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- Definition

Life Insurance, Corporate or Bank Owned, Fair Value Disclosure, Amount

+ References

No definition available.

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- Definition

Mutual Funds Asset, Fair Value Disclosure

+ References

No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 55
-Paragraph 10
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-Publisher FASB
-Name Accounting Standards Codification
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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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-Publisher FASB
-Name Accounting Standards Codification
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- 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.

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