Business Combinations - Summary of Preliminary Estimated Fair Values of Assets Acquired and Liabilities Assumed at the Date of Acquisition (Details) - Keymile Acquisition $ in Thousands	Jan. 03, 2019 USD ($)
Current assets
Cash and cash equivalents	$ 4,582
Accounts receivable - trade, net	6,820
Other receivables	798
Inventories	9,943
Property, plant and equipment	983
Other assets	163
Intangible assets	12,030
Accounts payable - trade	(3,303)
Short-term debt	(4,582)
Contract liabilities	(364)
Accrued liabilities	(3,614)
Deferred tax liabilities	(1,071)
Pension obligations	(12,656)
Other long term liabilities	(116)
Bargain purchase gain	(334)
Total purchase consideration	$ 9,279