Organization and Summary of Significant Accounting Policies Organization and Summary of Significant Accounting Policies - Adjustments to Opening Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Assets
Other assets	$ 35,756	$ 35,482	$ 22,999
Total assets	739,195	732,023	719,540
Liabilities and Equity
Accrued liabilities	36,348	39,954	41,092
Other current liabilities	3,914	3,625	37
Total current liabilities	163,794	168,461	166,011
Other long-term liabilities	13,247	15,737	5,704
Total liabilities	258,656	264,699	252,216
Total liabilities and stockholders’ equity	$ 739,195	732,023	$ 719,540
Accounting Standards Update 2016-02
Assets
Other assets		12,483
Total assets		12,483
Liabilities and Equity
Accrued liabilities		(1,138)
Other current liabilities		3,588
Total current liabilities		2,450
Other long-term liabilities		10,033
Total liabilities		12,483
Total liabilities and stockholders’ equity		$ 12,483