Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property Plant and Equipment, Presented Net of Accumulated Depreciation

Property, plant and equipment, presented net of accumulated depreciation in the consolidated balance sheets, consists of:

	December 31,
	2012			2011
Land and buildings	$	109,752		$	102,615
Equipment		112,346			111,144
Motor vehicles		16,962			15,671
Motor vehicles under lease		2,362			3,008
Computer hardware and software		19,699			17,476
Other		10,128			8,010
Total gross book value		271,249			257,924
Less—Accumulated depreciation		(100,854	)		(80,333	)
Less—Accumulated depreciation of leases		(651	)		(931	)
Total	$	169,744		$	176,660