The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Acquisitions - Narratives (Details) - USD ($) $ in Millions	1 Months Ended		9 Months Ended
Acquisitions - Narratives (Details) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 31, 2017	Oct. 27, 2018
Business Acquisition [Line Items]
Working capital adjustment			$ 0.5
Aero Communications, Inc.
Business Acquisition [Line Items]
Payment to acquire business, net of cash acquired	$ 20.9
Texstar Enterprises, Inc.
Business Acquisition [Line Items]
Payment to acquire business, net of cash acquired		$ 26.1