Commitments and Contingencies Revenue Sharing Agreement with the Commonwealth of Australia (Details) In Millions, unless otherwise specified		9 Months Ended
	May 08, 2013 USD ($) Equipment	Sep. 27, 2013 Commonwealth of Australia [Member] Revenue Sharing Agreement [Member] SH 2GA Super Seasprite Program [Member] AUD	Sep. 27, 2013 Commonwealth of Australia [Member] Revenue Sharing Agreement [Member] SH 2GA Super Seasprite Program [Member] USD ($) aircraft	Apr. 02, 2013 Commonwealth of Australia [Member] Revenue Sharing Agreement [Member] SH 2GA Super Seasprite Program [Member] USD ($)
Loss Contingencies [Line Items]
SH 2G(I) New Zealand Contract Value	$ 120.6		$ 120.6
SH-2G(I) Aircraft Sold	10		10
Cumulative Payments, Contractual Obligation		39.5
Contractual Obligation				$ 6.7