CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Operating Activities:
Net income (loss)	$ (2,011)	$ 461	$ (11,797)	$ (2,407)
Net income (loss) from discontinued operations	(1,335)	41,410	(2,984)	45,294
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	11,058	11,611	23,491	24,036
Share-based compensation expense	870	1,015	2,497	3,191
Gain (loss) on disposal of assets	(1,474)		(1,474)	405
Change in fair value of contingent consideration	154	(880)	452	(2,194)
Deferred income taxes	(185)		(185)
Changes in operating assets and liabilities, net of effects from acquisitions:	5,417	(50,660)	(9,021)	(63,667)
NET CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES	12,494	2,957	979	4,658
NET CASH PROVIDED BY OPERATING ACTIVITIES FROM DISCONTINUED OPERATIONS	21,556	943	6,133	6,340
NET CASH PROVIDED BY OPERATING ACTIVITIES	34,050	3,900	7,112	10,998
Investing Activities:
Acquisition of businesses, net of cash acquired	(4,884)		(9,534)	(12,924)
Purchases of property, plant and equipment	(5,468)	(8,495)	(11,786)	(15,169)
Purchases of marketable securities		(12,509)		(18,755)
Proceeds from sales or maturities of marketable securities		6,257		12,503
Purchase of non-marketable debt and equity securities	(579)		(1,250)
Proceeds from the sale of fixed assets	2,400		2,400
NET CASH USED IN INVESTING ACTIVITIES FROM CONTINUING OPERATIONS	(8,531)	(14,747)	(20,170)	(34,345)
NET CASH PROVIDED BY INVESTING ACTIVITIES FROM DISCONTINUED OPERATIONS				1,233
NET CASH USED IN INVESTING ACTIVITIES	(8,531)	(14,747)	(20,170)	(33,112)
Financing Activities:
Proceeds from short-term borrowings	37,120	32,480	119,120	69,280
Principal payments on short-term borrowings	(48,120)	(24,280)	(97,120)	(59,280)
Principal payments on long-term debt		(109)		(216)
Stock issued under employee stock purchase plan	798		798
Purchase of common stock	(68)		(2,324)	(2,334)
Dividends paid	(3,676)	(3,659)	(3,676)	(3,659)
Contingent consideration payments related to acquisitions of businesses			(656)	(1,988)
Net change in restricted cash	(2,498)	2,713	(5,741)	(1,513)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(16,444)	7,145	10,401	290
Effect of exchange rates on cash	(1,651)	5,180	(1,067)	(7,486)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	7,424	1,478	(3,724)	(29,310)
Cash and cash equivalents at the beginning of the period	48,995	166,339	60,143	197,127
CASH AND CASH EQUIVALENTS AT THE END OF THE PERIOD	$ 56,419	$ 167,817	$ 56,419	167,817
Vocality
Supplemental disclosure of non-cash investing and financing activities:
Liability incurred to acquire, net				$ 1,035