Recent Accounting Pronouncements (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2019 company	Jan. 01, 2020 USD ($)	Jan. 01, 2019 USD ($)	Jan. 01, 2018 USD ($)
ASC 606
Gain Contingencies [Line Items]
Number of unconsolidated joint ventures | company	2
Cumulative adjustment for the adoption of ASC			$ 11,934	$ (327,602)
Retained Earnings | ASC 606
Gain Contingencies [Line Items]
Cumulative adjustment for the adoption of ASC			$ 11,934	$ (326,639)
Retained Earnings | ASC Topic 326
Gain Contingencies [Line Items]
Cumulative adjustment for the adoption of ASC		$ 2,000
Accounts Receivable and Contract Assets | ASC Topic 326
Gain Contingencies [Line Items]
Cumulative adjustment for the adoption of ASC		$ 2,000