Receivables	3 Months Ended
Receivables	Mar. 31, 2019
Receivables [Abstract]
Receivables	Receivables The Company’s accounting policy and methodology used to estimate the allowance for doubtful accounts related to service revenues are discussed in the Company’s 2018 Annual Report on Form 10-K. The Company's accounting policy and methodology used to assess collectibility related to rental revenues changed on January 1, 2019 when the Company adopted ASC 842. The guidance requires the Company to assess, at lease commencement and subsequently, collectibility from its tenants of future lease payments. If the Company determines collectibility is not probable, it recognizes an adjustment to lower income from rentals, whereas previously the Company recognized bad debt expense. Accounts Receivable As of March 31, 2019, accounts receivable was $18.3 million and there was an allowance for doubtful accounts of $362 thousand. As of December 31, 2018, accounts receivable was $16.5 million and there was an allowance for doubtful accounts of $2.5 million. Straight-Line Rent Receivable As of March 31, 2019, straight-line rent receivable was $159.0 million and there was no allowance for doubtful accounts. As of December 31, 2018, straight-line rent receivables was $142.4 million and there was no allowance for doubtful accounts.

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.