Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory

	December 31
	2015		2014
	$ in thousands
Components:
For manufacturing of systems		47,328		51,323
For servicing of systems		36,539		35,824
		83,867		87,147
Work in process		19,476		25,266
Finished products		29,907		44,617
Total		133,250		157,030