Related Party Transactions - Additional Information (Detail) - USD ($)		12 Months Ended
	Jan. 02, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Proceeds from sale of business			$ 356,704,000
Consulting fee			$ 425,000
Term of agreement			2 years
Sale of Life Insurance Policies			$ 1,700,000
Dividends on preferred stocks		$ 300,000	300,000	$ 300,000
Board Member [Member]
Related Party Transaction [Line Items]
Consulting fee			135,000
Industrial Acquisitions LLC and Industrial Products LLC [Member]
Related Party Transaction [Line Items]
Loss on sales of businesses		839,000
Operating Other Expense [Member] | Industrial Acquisitions LLC and Industrial Products LLC [Member]
Related Party Transaction [Line Items]
Proceeds from sale of business		$ 3,500,000
Jack E. Golsen [Member]
Related Party Transaction [Line Items]
Current term expiring date		Dec. 31, 2017
Retirement date		Dec. 31, 2017
Jack E. Golsen [Member] | Subsequent Event [Member] | Transition Agreement [Member]
Related Party Transaction [Line Items]
Agreement commencement date	Jan. 01, 2018
Payment of annual cash retainer fee	$ 480,000
Amount payable to cover certain monthly expense	4,400
Severance agreement, one-time payment	$ 2,320,000
Jack E. Golsen [Member] | Operating Other Expense [Member]
Related Party Transaction [Line Items]
Extinguishment of estimated death benefit liability		$ 1,400,000
Golsen Holders [Member]
Related Party Transaction [Line Items]
Dividends on preferred stocks		0	$ 0	$ 300,000
Golsen Holders [Member] | Cumulative Preferred Stock [Member]
Related Party Transaction [Line Items]
Preferred stock dividends accumulated		$ 678,000