Investment in Unconsolidated Joint Ventures Schedule of Unconsolidated Joint Ventures (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	$ 151,162	$ 0
PKY CalSTRS Austin, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	93,171	0
Parkway's ownership percentage	50.00%
US Airways Building [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	42,501	0
Parkway's ownership percentage	74.58%
7000 Central Park JV, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures	$ 15,490	$ 0
Parkway's ownership percentage	40.00%