Inventories, Net Of Customer Advances (Tables)

12 Months Ended

Dec. 31, 2017

Inventory, Net [Abstract]

Schedule Of Inventories

	December 31,
	2017		2016
Cost incurred on long-term contracts in progress	$	612,763	$	650,721
Raw materials	342,274		310,780
Advances to suppliers and subcontractors	57,726		52,728
	1,012,763		1,014,229
Less -
Cost incurred on contracts in progress deducted from customer advances	34,523		65,032
Advances received from customers (*)	52,596		65,418
Provision for losses on long-term contracts	22,690		43,513
	$	902,954	$	840,266

(*)

The Company has transferred legal title of inventories to certain customers as collateral for advances received. Advances are allocated to the relevant inventories on a per-project basis. In cases where advances are in excess of the inventories, the net amount is presented in customer advances (see Note 14).