XML 59 R33.htm IDEA: XBRL DOCUMENT v3.19.3

Compensation and Benefits (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Components of Compensation Expense

Total compensation and benefits consists of the following:

			For the Three Months Ended September 30,																		For the Nine Months Ended September 30,
			2019						2018						2019						2018
Salaries, incentive compensation and benefits (1)			$	89,969					$	90,097					$	267,198					$	273,057
Restricted share-based award compensation expense			9,878						12,644						33,417						41,652
Total compensation and benefits			$	99,847					$	102,741					$	300,615					$	314,709
(1) Excluding restricted share-based award compensation expense

Restricted Share-Based Award Activity

The following table summarizes the restricted share-based award activity for the nine months ended September 30, 2019:

			Weighted-Average Grant Date Fair Value						Number of Awards
Unvested at January 1, 2019			$	38.04					4,678,457
Granted			22.92						963,000
Forfeited			34.86						(16,865)
Vested			39.21						(617,943)
Unvested at September 30, 2019			$	35.00					5,006,649

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:	nonnum: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

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:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration