Statements of Condensed Consolidated Cash Flows (unaudited) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Cash flows from operating activities:
Net (losses)/earnings	$ (4,971,000)	$ 8,308,000	$ (22,948,000)	$ 6,839,000
Less: Net earnings from discontinued operations, net of tax	93,000	156,000	128,000	55,000
Net (losses)/earnings from continuing operations	(5,064,000)	8,152,000	(23,076,000)	6,784,000
Adjustments to reconcile net (losses)/earnings to net cash provided by operating activities:
Depreciation and amortization	15,082,000	13,331,000	28,810,000	26,398,000
Impairment of property, plant and equipment and other assets	0	0	8,216,000	0
Gain on disposal of property, plant and equipment	(150,000)	(150,000)	(300,000)	(300,000)
Gain on extinguishment of debt	0	1,200,000	0	1,200,000
Earnings from unconsolidated companies, net of tax	(3,474,000)	(2,259,000)	(3,850,000)	(3,094,000)
Amortization of debt issuance costs and discount on secured term loan	757,000	732,000	1,477,000	1,440,000
Share-based compensation			3,554,000	3,149,000
Change in provisions for uncertain tax positions			36,000	136,000
Benefit from deferred income tax			(9,514,000)	(3,526,000)
Other non-cash movements			632,000	1,302,000
Effect of exchange rates on net losses			965,000	(8,800,000)
Change in assets and liabilities, net of effects from acquisitions:
Accounts receivable			(10,313,000)	(3,109,000)
Due from unconsolidated companies			527,000	(1,353,000)
Prepaid expenses and other			(1,636,000)	(417,000)
Inventories			618,000	(1,048,000)
Escrow and prepaid customer deposits			(8,160,000)	(2,327,000)
Accounts payable			(697,000)	(518,000)
Accrued liabilities			11,127,000	6,314,000
Deferred revenue			10,980,000	12,993,000
Other liabilities			(14,000)	(14,367,000)
Other, net			253,000	(256,000)
Other cash movements:
Dividends from equity method investees			2,070,000	2,062,000
Net cash provided by operating activities from continuing operations			11,705,000	20,263,000
Net cash provided by operating activities from discontinued operations			(7,000)	55,000
Net cash provided by operating activities			11,698,000	20,318,000
Cash flows from investing activities:
Capital expenditure to acquire property, plant and equipment	(15,420,000)	(16,063,000)	(27,415,000)	(27,076,000)
Acquisitions, net of cash acquired			(68,632,000)	0
Increase in restricted cash			(256,000)	(129,000)
Proceeds from sale of property, plant and equipment			0	2,362,000
Net cash used in investing activities from continuing operations			(96,303,000)	(24,843,000)
Net cash provided by investing activities from discontinued operations			0	0
Net cash used in investing activities			(96,303,000)	(24,843,000)
Cash flows from financing activities:
Repurchase of shares			0	(1,992,000)
Exercised share options and vested share awards			3,000	16,000
Dividend to non-controlling interest			0	(7,000)
Proceeds from borrowings			45,000,000	26,000,000
Debt issuance costs			0	(414,000)
Principal payments under long-term debt			(2,653,000)	(11,207,000)
Net cash provided by financing activities from continuing operations			42,350,000	12,396,000
Net cash provided by financing activities from discontinued operations			0	0
Net cash provided by financing activities			42,350,000	12,396,000
Effect of exchange rate changes on cash and cash equivalents			2,680,000	1,062,000
Net (decrease)/increase in cash and cash equivalents			(39,575,000)	8,933,000
Cash and cash equivalents at beginning of period (includes $Nil and $Nil of cash presented within assets held for sale)			153,425,000	135,599,000	$ 135,599,000
Cash and cash equivalents at end of period (includes $Nil and $Nil of cash presented within assets held for sale)	$ 113,850,000	$ 144,532,000	$ 113,850,000	$ 144,532,000	$ 153,425,000