Property and Equipment (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2018
Property and equipment
Total property and equipment		$ 5,308,778	$ 5,688,678
Accumulated depreciation		(3,445,611)	(3,760,498)
Property and equipment, net		1,863,167	1,928,180
Equipment leased to customers
Property and equipment
Total property and equipment		$ 1,940,528	2,016,965
Equipment leased to customers | Minimum
Property and equipment
Depreciable Life		2 years
Equipment leased to customers | Maximum
Property and equipment
Depreciable Life		5 years
EchoStar XV
Property and equipment
Total property and equipment		$ 277,658	277,658
Depreciable Life		15 years
EchoStar XVIII
Property and equipment
Total property and equipment		$ 411,255	411,255
Depreciable Life		15 years
D1
Property and equipment
Total property and equipment		$ 55,000	55,000
T1
Property and equipment
Total property and equipment	[1]	$ 66,071	100,000
Depreciable Life	[1]	14 years 3 months
Satellites acquired under finance lease agreements
Property and equipment
Total property and equipment	[2]	$ 223,423	499,819
Satellites acquired under finance lease agreements | Minimum
Property and equipment
Depreciable Life	[2]	10 years
Satellites acquired under finance lease agreements | Maximum
Property and equipment
Depreciable Life	[2]	15 years
Furniture, fixtures, equipment and other
Property and equipment
Total property and equipment		$ 1,910,150	1,923,585
Furniture, fixtures, equipment and other | Minimum
Property and equipment
Depreciable Life		2 years
Furniture, fixtures, equipment and other | Maximum
Property and equipment
Depreciable Life		10 years
Buildings and improvements
Property and equipment
Total property and equipment		$ 285,321	290,650
Buildings and improvements | Minimum
Property and equipment
Depreciable Life		4 years
Buildings and improvements | Maximum
Property and equipment
Depreciable Life		40 years
Land
Property and equipment
Total property and equipment		$ 13,186	13,186
Construction in progress
Property and equipment
Total property and equipment		$ 126,186	$ 100,560

[1] DepreciableAs ofLifeMarch 31, December 31,     (In Years)    2019    2018(In thousands)Equipment leased to customers 2-5$ 1,940,528$ 2,016,965EchoStar XV15 277,658 277,658EchoStar XVIII15 411,255 411,255D1N/A 55,000 55,000T1 (1)14 66,071 100,000Satellites acquired under finance lease agreements (2) 10-15 223,423 499,819Furniture, fixtures, equipment and other 2-10 1,910,150 1,923,585Buildings and improvements 4-40 285,321 290,650Land — 13,186 13,186Construction in progress — 126,186 100,560Total property and equipment 5,308,778 5,688,678Accumulated depreciation (3,445,611) (3,760,498)Property and equipment, net$ 1,863,167$ 1,928,180See Note 5 for further information on the transaction with TSI.

[2] The Ciel II satellite was previously classified as a finance lease, however, as a result of an amendment, which was effective during the first quarter 2019, Ciel II is now accounted for as an operating lease.