XML 42 R32.htm IDEA: XBRL DOCUMENT v3.22.1

Compensation and Benefits (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Components of Compensation Expense

Total compensation and benefits consists of the following:

			For the Three Months Ended March 31,
			2022						2021
Salaries, incentive compensation and benefits (1)			$	127,195					$	128,364
Long-term cash incentive compensation expense			2,649						1,214
Restricted share-based award compensation expense			10,088						9,887
Long-term incentive compensation expense			12,737						11,101
Total compensation and benefits			$	139,932					$	139,465
(1) Excluding long-term incentive compensation expense

Restricted Share-Based Award Activity

The following tables summarize the restricted share-based award activity for the three months ended March 31, 2022:

			Weighted-Average Grant Date Fair Value						Restricted Stock Awards and Restricted Stock Units
Unvested at January 1, 2022			$	38.18					5,245,394
Granted			41.86						788,703
Forfeited			45.67						(1,218)
Vested			34.91						(580,550)
Unvested at March 31, 2022			$	39.06					5,452,329

Nonvested Restricted Stock Shares Activity

			Weighted-Average Grant Date Fair Value						Performance Share Units
Unvested at January 1, 2022			$	61.42					135,230
Granted			53.50						95,940
Forfeited			—						—
Vested			—						—
Unvested at March 31, 2022			$	58.13					231,170

Change in Value of Investments

The change in value of the investments had the following impact on the unaudited consolidated statements of operations:

						For the Three Months Ended March 31,
Statement of Operations Section			Statement of Operations Line Item			2022						2021
Operating expenses			Compensation and benefits			$	(707)					$	(3)
Non-operating income (expense)			Other net investment gain (loss)			(2,961)						(105)

X

- Definition

Tabular disclosure of expenditures for salaries, wages, profit sharing and incentive compensation, and other employee benefits, including equity-based compensation, and pension and other postretirement benefit expense.

+ References

No definition available.

+ Details

Name:	apam_ScheduleOfLaborAndRelatedExpenseTableTextBlock
Namespace Prefix:	apam_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-URI http://asc.fasb.org/topic&trid=2197064

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-URI http://asc.fasb.org/topic&trid=75115024

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-URI http://asc.fasb.org/topic&trid=2196965

+ Details

Name:	us-gaap_InvestmentTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration