Acquisitions - Pro Forma Information - Tabular Disclosure - Actual (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition, Pro Forma Information [Abstract]
Revenue	$ 203,880	$ 179,368	$ 172,363	$ 581,637	$ 471,914
Net income (loss)	$ 921		$ 4,813	$ 4,359	$ 68,929

Amount after tax of income (loss) from continuing operations attributable to the parent.

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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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