Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2018

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
	June 30, 2018		Level 1		Level 2		Level 3
Assets:
Money market	$	9,954	$	9,954	$	—	$	—
Certificates of deposit	7,006		—		7,006		—
Total assets measured at fair value	$	16,960	$	9,954	$	7,006	$	—
Liabilities:
Contingent consideration on acquired businesses	$	9,021	$	—	$	—	$	9,021
Total liabilities measured at fair value	$	9,021	$	—	$	—	$	9,021

	Total Fair Value at		Fair Value Measurements Using  Inputs Considered as
	September 30, 2017		Level 1		Level 2		Level 3
Assets:
Money market	$	39,524	$	39,524	$	—	$	—
Corporate bonds	28,255		—		28,255		—
Certificates of deposit	8,513		—		8,513		—
Total assets measured at fair value	$	76,292	$	39,524	$	36,768	$	—
Liabilities:
Contingent consideration on acquired businesses	$	6,388	$	—	$	—	$	6,388
Total liabilities measured at fair value	$	6,388	$	—	$	—	$	6,388

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 June 30,					Nine months ended June 30,
	2018		2017			2018		2017
Fair value at beginning of period	$	8,263	$	10,068		$	6,388	$	9,960
Purchase price contingent consideration	—		—			2,300		1,310
Contingent consideration payments	—		—			—		(518		)
Change in fair value of contingent consideration	758		(646		)	333		(1,330		)
Fair value at end of period	$	9,021	$	9,422		$	9,021	$	9,422