Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value of Assets Measured on Recurring Basis

The following tables provide information by level for financial assets and liabilities that are measured at fair value on a recurring basis (in thousands):

	Total Fair Value at		Fair Value Measurements Using  Inputs Considered as
	March 31, 2019		Level 1		Level 2		Level 3
Assets:
Money market	$	27,883	$	27,883	$	—	$	—
Certificates of deposit	2,497		—		2,497		—
Total assets measured at fair value	$	30,380	$	27,883	$	2,497	$	—
Liabilities:
Contingent consideration on acquired businesses	$	8,527	$	—	$	—	$	8,527
Total liabilities measured at fair value	$	8,527	$	—	$	—	$	8,527

	Total Fair Value at		Fair Value Measurements Using  Inputs Considered as
	September 30, 2018		Level 1		Level 2		Level 3
Assets:
Money market	$	24,318	$	24,318	$	—	$	—
Certificates of deposit	4,736		—		4,736		—
Total assets measured at fair value	$	29,054	$	24,318	$	4,736	$	—
Liabilities:
Contingent consideration on acquired businesses	$	10,065	$	—	$	—	$	10,065
Total liabilities measured at fair value	$	10,065	$	—	$	—	$	10,065

Fair Value of Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following table presents a reconciliation of the contingent consideration liability measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in thousands):

	Three months ended March 31,						Six months ended March 31,
	2019			2018			2019			2018
Fair value at beginning of period	$	10,147		$	5,981		$	10,065		$	6,388
Purchase price contingent consideration	—			2,300			—			2,300
Contingent consideration payments	(2,187		)	—			(2,348		)	—
Change in fair value of contingent consideration	567			(18		)	810			(425		)
Fair value at end of period	$	8,527		$	8,263		$	8,527		$	8,263