Other	12 Months Ended
Dec. 31, 2017
Other Income and Expenses [Abstract]
Other	Other Advertising Expenses Advertising expense to promote our brand, subscription products and marketing services were $118.6 million, $89.8 million and $83.4 million for the fiscal years ended December 31, 2017, December 25, 2016 and December 27, 2015, respectively. We expense our advertising costs as incurred. Capitalized Computer Software Costs Amortization of capitalized computer software costs included in “Depreciation and amortization” in our Consolidated Statements of Operations was $12.8 million, $11.5 million and $11.9 million for the fiscal years ended December 31, 2017, December 25, 2016 and December 27, 2015, respectively. The unamortized computer software costs were $28.1 million and $19.0 million as of December 31, 2017 and December 25, 2016, respectively. Headquarters Redesign and Consolidation In December 2016, we announced plans to redesign our headquarters building, consolidate our operations within a smaller number of floors and lease the additional floors to third parties. These changes are expected to generate additional rental income and result in a more collaborative workspace. We incurred $10.1 million of total costs related to these measures for the fiscal year ended December 31, 2017 . The capital expenditures related to these measures were approximately $62 million for the fiscal year ended December 31, 2017. Severance Costs On May 31, 2017, we announced certain measures designed to streamline our editing process and allow us to make further investments in the newsroom. These measures resulted in a workforce reduction primarily affecting our newsroom. We recognized severance costs of $23.9 million for the fiscal year ended December 31, 2017, substantially all of which were related to this workforce reduction. We recognized severance costs of $18.8 million in 2016 and $7.0 million in 2015. These costs are recorded in “Selling, general and administrative costs” in our Consolidated Statements of Operations. Additionally, during the second quarter of 2016, we announced certain measures to streamline our international print operations and support future growth efforts. These measures included a redesign of our international print newspaper and the relocation of certain editing and production operations conducted in Paris to our locations in Hong Kong and New York. During the third and second quarters of 2016, we incurred $2.9 million and $11.9 million, respectively, of total costs related to the measures, primarily related to relocation and severance charges. These costs were recorded in “Restructuring charge” in our Consolidated Statements of Operations. We had a severance liability of $18.8 million and $23.2 million included in “Accrued expenses and other” in our Consolidated Balance Sheets as of December 31, 2017 and December 25, 2016, respectively.

Other

Advertising Expenses

Advertising expense to promote our brand, subscription products and marketing services were $118.6 million, $89.8 million and $83.4 million for the fiscal years ended December 31, 2017, December 25, 2016 and December 27, 2015, respectively. We expense our advertising costs as incurred.

Capitalized Computer Software Costs

Amortization of capitalized computer software costs included in “Depreciation and amortization” in our Consolidated Statements of Operations was $12.8 million, $11.5 million and $11.9 million for the fiscal years ended December 31, 2017, December 25, 2016 and December 27, 2015, respectively. The unamortized computer software costs were $28.1 million and $19.0 million as of December 31, 2017 and December 25, 2016, respectively.

Headquarters Redesign and Consolidation

In December 2016, we announced plans to redesign our headquarters building, consolidate our operations within a smaller number of floors and lease the additional floors to third parties. These changes are expected to generate additional rental income and result in a more collaborative workspace. We incurred $10.1 million of total costs related to these measures for the fiscal year ended December 31, 2017 . The capital expenditures related to these measures were approximately $62 million for the fiscal year ended December 31, 2017.

Severance Costs

On May 31, 2017, we announced certain measures designed to streamline our editing process and allow us to make further investments in the newsroom. These measures resulted in a workforce reduction primarily affecting our newsroom. We recognized severance costs of $23.9 million for the fiscal year ended December 31, 2017, substantially all of which were related to this workforce reduction. We recognized severance costs of $18.8 million in 2016 and $7.0 million in 2015. These costs are recorded in “Selling, general and administrative costs” in our Consolidated Statements of Operations.

Additionally, during the second quarter of 2016, we announced certain measures to streamline our international print operations and support future growth efforts. These measures included a redesign of our international print newspaper and the relocation of certain editing and production operations conducted in Paris to our locations in Hong Kong and New York. During the third and second quarters of 2016, we incurred $2.9 million and $11.9 million, respectively, of total costs related to the measures, primarily related to relocation and severance charges. These costs were recorded in “Restructuring charge” in our Consolidated Statements of Operations.

We had a severance liability of $18.8 million and $23.2 million included in “Accrued expenses and other” in our Consolidated Balance Sheets as of December 31, 2017 and December 25, 2016, respectively.