american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) operations , net , in the accompanying consolidated statements of operations for the year ended december 31 , 2003 .( see note 9. ) other transactions 2014in august 2003 , the company consummated the sale of galaxy engineering ( galaxy ) , a radio frequency engineering , network design and tower-related consulting business ( previously included in the company 2019s network development services segment ) .the purchase price of approximately $ 3.5 million included $ 2.0 million in cash , which the company received at closing , and an additional $ 1.5 million payable on january 15 , 2008 , or at an earlier date based on the future revenues of galaxy .the company received $ 0.5 million of this amount in january 2005 .pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 2.4 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in may 2003 , the company consummated the sale of an office building in westwood , massachusetts ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for a purchase price of approximately $ 18.5 million , including $ 2.4 million of cash proceeds and the buyer 2019s assumption of $ 16.1 million of related mortgage notes .pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 3.6 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in january 2003 , the company consummated the sale of flash technologies , its remaining components business ( previously included in the company 2019s network development services segment ) for approximately $ 35.5 million in cash and has recorded a net gain on disposal of approximately $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in march 2003 , the company consummated the sale of an office building in schaumburg , illinois ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for net proceeds of approximately $ 10.3 million in cash and recorded a net loss on disposal of $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .4 .property and equipment property and equipment ( including assets held under capital leases ) consist of the following as of december 31 , ( in thousands ) : .                                                | 2005                 | 2004              
towers                                         | $ 4134155            | $ 2788162         
equipment                                      | 167504               | 115244            
buildings and improvements                     | 184951               | 162120            
land and improvements                          | 215974               | 176937            
construction-in-progress                       | 36991                | 27866             
total                                          | 4739575              | 3270329           
less accumulated depreciation and amortization | -1279049 ( 1279049 ) | -996973 ( 996973 )
property and equipment net                     | $ 3460526            | $ 2273356          5 .goodwill and other intangible assets the company 2019s net carrying amount of goodwill was approximately $ 2.1 billion as of december 312005 and $ 592.7 million as of december 31 , 2004 , all of which related to its rental and management segment .the increase in the carrying value was as a result of the goodwill of $ 1.5 billion acquired in the merger with spectrasite , inc .( see note 2. ) .
Question: what was the amount of property and equipment net in 2005?
Steps: Ask for number 3460526
Answer: 3460526.0
Question: and what was it in 2004?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) operations , net , in the accompanying consolidated statements of operations for the year ended december 31 , 2003 .( see note 9. ) other transactions 2014in august 2003 , the company consummated the sale of galaxy engineering ( galaxy ) , a radio frequency engineering , network design and tower-related consulting business ( previously included in the company 2019s network development services segment ) .the purchase price of approximately $ 3.5 million included $ 2.0 million in cash , which the company received at closing , and an additional $ 1.5 million payable on january 15 , 2008 , or at an earlier date based on the future revenues of galaxy .the company received $ 0.5 million of this amount in january 2005 .pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 2.4 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in may 2003 , the company consummated the sale of an office building in westwood , massachusetts ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for a purchase price of approximately $ 18.5 million , including $ 2.4 million of cash proceeds and the buyer 2019s assumption of $ 16.1 million of related mortgage notes .pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 3.6 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in january 2003 , the company consummated the sale of flash technologies , its remaining components business ( previously included in the company 2019s network development services segment ) for approximately $ 35.5 million in cash and has recorded a net gain on disposal of approximately $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .in march 2003 , the company consummated the sale of an office building in schaumburg , illinois ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for net proceeds of approximately $ 10.3 million in cash and recorded a net loss on disposal of $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 .4 .property and equipment property and equipment ( including assets held under capital leases ) consist of the following as of december 31 , ( in thousands ) : .                                                | 2005                 | 2004              
towers                                         | $ 4134155            | $ 2788162         
equipment                                      | 167504               | 115244            
buildings and improvements                     | 184951               | 162120            
land and improvements                          | 215974               | 176937            
construction-in-progress                       | 36991                | 27866             
total                                          | 4739575              | 3270329           
less accumulated depreciation and amortization | -1279049 ( 1279049 ) | -996973 ( 996973 )
property and equipment net                     | $ 3460526            | $ 2273356          5 .goodwill and other intangible assets the company 2019s net carrying amount of goodwill was approximately $ 2.1 billion as of december 312005 and $ 592.7 million as of december 31 , 2004 , all of which related to its rental and management segment .the increase in the carrying value was as a result of the goodwill of $ 1.5 billion acquired in the merger with spectrasite , inc .( see note 2. ) .
Question: what was the amount of property and equipment net in 2005?
Steps: Ask for number 3460526
Answer: 3460526.0
Question: and what was it in 2004?
