Leases - Schedule of Underlying Assets under Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross	$ 8,216,258	$ 7,978,363
Less: accumulated depreciation	(5,502,245)	(5,391,479)
Underlying assets under operating leases, net	2,714,013	2,586,884
Land
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	26,550	26,593
Building and improvements
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	344,836	343,624
Poles
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	293,504	281,130
Fiber
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	3,465,878	3,278,276
Equipment
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	428	428
Copper
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	3,955,180	3,918,281
Conduit
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	89,925	89,859
Tower assets
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	1,397	1,397
Finance lease assets
Lessor Lease Description [Line Items]
Finance lease assets	28,126	28,126
Other assets
Lessor Lease Description [Line Items]
Property, plant, and equipment, lessor asset under operating lease, before accumulated depreciation	$ 10,434	$ 10,649