Noncontrolling Interests (Redeemable Preferred Units) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
	Jun. 25, 2015	May 12, 2014	Dec. 31, 2014	Nov. 05, 2014	Oct. 16, 2014	Jul. 03, 2014	May 19, 2014
Series Two Preferred Units [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Units converted (in shares)			666,116
Series Two Preferred Units [Member] | Noncontrolling Interests [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Liquidation preference percentage		6.00%
Operating Units liquidation preference (in dollars per share)		$ 38.10
OP Units for each Preferred Unit (in shares)		1.312336
Units converted (in shares)		666,116
Series Two Preferred Units On Converted Basis		874,168
Preferred Units Liquidation Preference		$ 50.00
Series Four Preferred Units [Member] | Noncontrolling Interests [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Series Four Preferred Units Redeemed	12,667
Series Four Preferred Units Released from Escrow					27,773		319,687
Redemption of Series Four Preferred Units	$ 0.6			$ 1.4		$ 16.0
Series Four Preferred Units Annual Dividend Payable Rate	2.00%
Preferred Units Liquidation Preference	$ 50.00
OP Units [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Units converted (in shares)			874,168