Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Financial Instruments [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

	December 31,
($ thousands)	2012		2011
Foreign currency exchange forward contracts by currency:
Japanese Yen	$	112,500	$	27,500
Euro		5,159		10,055
Australian Dollar		4,178		-
Mexican Peso		11,400		6,500
Pound Sterling		8,742		6,345
New Zealand Dollar		1,137		-
Total notional value, net	$	143,116	$	50,400
Latest maturity date	December 2015		December 2012