Fair Value of Financial Instruments - Non-Financial Assets and Liabilities (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	$ 988
Continuing operations		$ 48
Total	988	48
Changes Measurement
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	1,586
Continuing operations		175
Total	1,586	175
Carrying Amount
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	988
Continuing operations		48
Total	988	48
Level 1
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	0
Continuing operations		0
Total	0	0
Level 2
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	0
Continuing operations		0
Total	0	0
Level 3
Fair Value, Assets Measured on Nonrecurring Basis
Closed operations	988
Continuing operations		48
Total	$ 988	$ 48