Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities (Details)

v3.19.1
Derivative Instruments and Hedging Activities (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Estimated reclassification of derivative gain (loss) from AOCI to earnings $ 1,000,000.0  
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Hedge December 2016    
Derivative [Line Items]    
Total notional amount $ 50,000,000 $ 50,000,000
Fixed interest rate 1.59% 1.59%
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Hedge June 2018    
Derivative [Line Items]    
Total notional amount $ 20,000,000 $ 20,000,000
Fixed interest rate 2.98% 2.98%
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap    
Derivative [Line Items]    
Notional amount increase upon maturity $ 70,000,000  
Other Noncurrent Assets | Interest Rate Swap    
Derivative [Line Items]    
Fair value of derivative instrument 300,000 $ 500,000
Other Noncurrent Liabilities | Interest Rate Swap    
Derivative [Line Items]    
Fair value of derivative instrument $ 1,300,000 $ 900,000