Acquisition and Dispositions (Details) £ in Thousands, $ in Thousands			3 Months Ended
	Sep. 16, 2016 GBP (£)	Oct. 06, 2015 USD ($)	Mar. 31, 2017 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating profit			$ (5,859)		$ (3,821)
Proceeds from disposition			$ 0		$ 55
Enterprise Talent Solutions [Member] | CDI AndersElite Limited Disposition [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition | £	£ 4,500
Consideration received, subordinated debt | £	£ 1,750
Consideration received, percent of equity in Holdings	19.99%
Value of non-cash purchase consideration received | £	£ 500
Loss on disposition of business interests				$ 11,301
EdgeRock Technologies, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments to acquire businesses		$ 33,400