Business Combinations - Narrative (Details) $ in Thousands			3 Months Ended
	May 01, 2018 USD ($) payment	Dec. 15, 2017 USD ($) shares	Jun. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Domenick
Business Acquisition [Line Items]
Value of consideration	$ 1,456
Cash paid at closing	$ 750		$ 175	$ 225
Number of contingent cash payments | payment	1
Maximum contingent cash payment amount per period	$ 250
RBPI
Business Acquisition [Line Items]
Value of consideration		$ 138,740
Number of shares issued | shares		3,101,316
Cash in lieu of fractional shares		$ 7
Cash-out of certain options		$ 112
Warrants converted by acquirer (in shares) | shares		1,368,040
Fair value of warrants assumed		$ 1,853
Number of securities called by warrants (in shares) | shares		140,224
RBPI | Common Class A
Business Acquisition [Line Items]
Stock consideration, conversion ratio of shares in acquirer		0.1025
RBPI | Common Class B
Business Acquisition [Line Items]
Stock consideration, conversion ratio of shares in acquirer		0.1179