Subsequent Event	3 Months Ended
Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events On April 26, 2018, the Company entered into several agreements to restructure a portfolio of 128 communities it leased from Ventas, Inc. and certain of its subsidiaries (collectively, “Ventas”) as of such date, including a Master Lease and Security Agreement (the “Master Lease”). The Master Lease amends and restates prior leases comprising an aggregate portfolio of 107 communities into the Master Lease. Under the Master Lease and other agreements entered into on April 26, 2018, the 21 additional communities leased by the Company from Ventas pursuant to separate lease agreements will be combined automatically into the Master Lease upon the first to occur of Ventas' election or the repayment of, or receipt of lender consent with respect to, mortgage debt underlying such communities. The Company and Ventas agreed to observe, perform and enforce such separate leases as if they had been combined into the Master Lease effective April 26, 2018, to the extent not in conflict with any mortgage debt underlying such communities. The transaction agreements with Ventas further provide that the Master Lease and certain other agreements between the Company and Ventas will be cross-defaulted. The initial term of the Master Lease ends December 31, 2025, with two 10-year extension options available to the Company. The Master Lease and separate lease agreements with Ventas, which are guaranteed at the parent level by the Company, provide for total rent in 2018 of approximately $175 million for the 128 communities, including the pro-rata portion of an $8 million rent credit for 2018. The Company will receive an annual rent credit of $8 million in 2019, $7 million in 2020 and $5 million thereafter; provided, that if a change of control of the Company occurs prior to 2021, the annual rent credit will be reduced to $5 million. Effective on January 1, 2019, the annual minimum rent will be subject to an escalator equal to the lesser of 2.25% or four times the CPI increase for the prior year (or zero if there was a CPI decrease). The Master Lease requires the Company to spend (or escrow with Ventas) a minimum of $2,000 per unit per 24-month period commencing with the 24-month period ending December 31, 2019 and thereafter each 24-month period ending December 31 during the lease term, subject to annual increases commensurate with the escalator beginning with the second lease year of the first extension term (if any). Under the definitive agreements with Ventas, the Company, at the parent level, must satisfy certain financial covenants (including tangible net worth and leverage ratios) and may consummate a change of control transaction without the need for consent of Ventas so long as certain objective conditions are satisfied, including the post-transaction guarantor's satisfying certain enhanced minimum tangible net worth and maximum leverage ratio, having minimum levels of operational experience and reputation in the senior living industry, and paying a change of control fee of $25 million to Ventas. At the Company’s option, which must be exercised on or before April 26, 2019, the Company may provide notice to Ventas of the Company's election to direct Ventas to market for sale one or more communities with up to approximately $30 million of annual minimum rent. Upon receipt of such notice, Ventas will be obligated to use commercially reasonable, diligent efforts to sell such communities on or before December 31, 2020 (subject to extension for regulatory purposes); provided, that Ventas' obligation to sell any such community will be subject to Ventas' receiving a purchase price in excess of a minimum sale price to be mutually agreed by the Company and Ventas and to certain other customary closing conditions. Upon any such sale, such communities will be removed from the Master Lease, and the annual minimum rent under the Master Lease will be reduced by the amount of the net sale proceeds received by Ventas multiplied by 6.25%. The lease restructuring transactions may require the Company to record a significant charge in the three months ended June 30, 2018, primarily for the extensions of the triple-net lease obligations for communities with lease terms that are unfavorable to the Company given current market conditions on the amendment date. The Company is unable to reasonably estimate the amount of the charge at this time.

Subsequent Events

On April 26, 2018, the Company entered into several agreements to restructure a portfolio of 128 communities it leased from Ventas, Inc. and certain of its subsidiaries (collectively, “Ventas”) as of such date, including a Master Lease and Security Agreement (the “Master Lease”). The Master Lease amends and restates prior leases comprising an aggregate portfolio of 107 communities into the Master Lease. Under the Master Lease and other agreements entered into on April 26, 2018, the 21 additional communities leased by the Company from Ventas pursuant to separate lease agreements will be combined automatically into the Master Lease upon the first to occur of Ventas' election or the repayment of, or receipt of lender consent with respect to, mortgage debt underlying such communities. The Company and Ventas agreed to observe, perform and enforce such separate leases as if they had been combined into the Master Lease effective April 26, 2018, to the extent not in conflict with any mortgage debt underlying such communities. The transaction agreements with Ventas further provide that the Master Lease and certain other agreements between the Company and Ventas will be cross-defaulted.

The initial term of the Master Lease ends December 31, 2025, with two 10-year extension options available to the Company. The Master Lease and separate lease agreements with Ventas, which are guaranteed at the parent level by the Company, provide for total rent in 2018 of approximately $175 million for the 128 communities, including the pro-rata portion of an $8 million rent credit for 2018. The Company will receive an annual rent credit of $8 million in 2019, $7 million in 2020 and $5 million thereafter; provided, that if a change of control of the Company occurs prior to 2021, the annual rent credit will be reduced to $5 million. Effective on January 1, 2019, the annual minimum rent will be subject to an escalator equal to the lesser of 2.25% or four times the CPI increase for the prior year (or zero if there was a CPI decrease).

The Master Lease requires the Company to spend (or escrow with Ventas) a minimum of $2,000 per unit per 24-month period commencing with the 24-month period ending December 31, 2019 and thereafter each 24-month period ending December 31 during the lease term, subject to annual increases commensurate with the escalator beginning with the second lease year of the first extension term (if any).

Under the definitive agreements with Ventas, the Company, at the parent level, must satisfy certain financial covenants (including tangible net worth and leverage ratios) and may consummate a change of control transaction without the need for consent of Ventas so long as certain objective conditions are satisfied, including the post-transaction guarantor's satisfying certain enhanced minimum tangible net worth and maximum leverage ratio, having minimum levels of operational experience and reputation in the senior living industry, and paying a change of control fee of $25 million to Ventas.

At the Company’s option, which must be exercised on or before April 26, 2019, the Company may provide notice to Ventas of the Company's election to direct Ventas to market for sale one or more communities with up to approximately $30 million of annual minimum rent. Upon receipt of such notice, Ventas will be obligated to use commercially reasonable, diligent efforts to sell such communities on or before December 31, 2020 (subject to extension for regulatory purposes); provided, that Ventas' obligation to sell any such community will be subject to Ventas' receiving a purchase price in excess of a minimum sale price to be mutually agreed by the Company and Ventas and to certain other customary closing conditions. Upon any such sale, such communities will be removed from the Master Lease, and the annual minimum rent under the Master Lease will be reduced by the amount of the net sale proceeds received by Ventas multiplied by 6.25%.

The lease restructuring transactions may require the Company to record a significant charge in the three months ended June 30, 2018, primarily for the extensions of the triple-net lease obligations for communities with lease terms that are unfavorable to the Company given current market conditions on the amendment date. The Company is unable to reasonably estimate the amount of the charge at this time.