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Accumulated Other Comprehensive Income - Rollforward of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Abstract]
Beginning balance	$ 5,608,261
Other comprehensive income before reclassifications	2,052
Amounts reclassified from accumulated other comprehensive income	(2,686)
Other comprehensive loss	(634)	$ 0
Ending balance	5,562,037
Accumulated other comprehensive income	295		$ 445
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Abstract]
Beginning balance	1,879
Ending balance	1,245
Changes in Fair Value of Effective Cash Flow Hedge
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Abstract]
Beginning balance	1,879
Other comprehensive income before reclassifications	2,052
Amounts reclassified from accumulated other comprehensive income	(2,686)
Other comprehensive loss	(634)
Ending balance	1,245
Accumulated other comprehensive income	295
Non-controlling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Abstract]
Beginning balance	4,274,444
Other comprehensive loss	(484)
Ending balance	4,239,164
Accumulated other comprehensive income	$ (950)