Summary of Significant Accounting Policies - Schedule of Balance Sheet Adjustments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaids and deposits	$ 65,589		$ 61,149	$ 61,177
Operating lease right-of-use assets	113,643		120,358
Other noncurrent assets, net	274,028		256,620	263,892
Total assets	7,950,091		8,774,352	8,661,294
Accrued expenses and other	111,745		89,923	72,470
Operating lease liabilities	94,979		100,085
Other noncurrent liabilities	114,275		117,675	121,546
Total liabilities	3,707,140		4,619,487	4,505,820
Accumulated earnings	704,236		693,520	694,129
Total stockholders’ equity	4,242,951	$ 4,179,536	4,154,865	4,155,474	$ 4,244,252	$ 4,205,515	$ 4,177,385
Total liabilities and stockholders’ equity	$ 7,950,091		8,774,352	$ 8,661,294
Adoption of ASC 842 Increase (Decrease)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaids and deposits			(28)
Operating lease right-of-use assets			120,358
Other noncurrent assets, net			(7,272)
Total assets			113,058
Accrued expenses and other			17,453
Operating lease liabilities			100,085
Other noncurrent liabilities			(3,871)
Total liabilities			113,667
Accumulated earnings			(609)
Total stockholders’ equity			(609)
Total liabilities and stockholders’ equity			$ 113,058