Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total		Share Capital	Share Capital Class A Stock	Contributed Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Parent
Stockholders' Equity Attributable to Parent			$ 58,492		$ 36,546	$ 427,295	$ 1,582
Net Income (Loss) Attributable to Parent	$ 6,705					6,705		$ 6,705
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Class A non-voting common stock				$ 37
Repurchase of Class A non-voting common stock for cancellation				0
Share-based expense					1,509
Vested employee share plan awards					(59)
Dividends paid ($0.11 per share)						(1,456)
Currency translation adjustment	(142)	[1]					(142)
Stockholders' Equity Attributable to Parent			58,529		37,996	432,544	1,440	530,509
Stockholders' Equity Attributable to Parent	545,322		53,392		41,776	449,989	165	545,322
Net Income (Loss) Attributable to Parent	11,194					11,194		11,194
Issuance of Class A non-voting common stock				1,162
Repurchase of Class A non-voting common stock for cancellation				$ (2,035)
Share-based expense					1,889
Vested employee share plan awards					(2,176)
Dividends paid ($0.11 per share)						(1,432)
Currency translation adjustment	563	[1]					563
Stockholders' Equity Attributable to Parent	$ 554,487		$ 52,519		$ 41,489	$ 459,751	$ 728	$ 554,487

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