Leases - Summary of Net Impact of Adoption Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash, cash equivalents, and restricted cash	$ 70,403		$ 72,189	$ 81,157	$ 53,941
Accounts receivable, net	86,805		77,747
Inventories	82,397		76,847
Prepaid expenses and other current assets	20,948		17,856
Total current assets	260,553		244,639
Property, plant, and equipment, net	62,727		42,835
Intangible assets, net and goodwill			124,298
Deferred income taxes	35,117		33,228
Other long-term assets	11,907		21,641
Total assets	495,620		466,641
Current liabilities
Accounts payable			17,989
Other current liabilities	64,674		67,919
Total current liabilities	84,883		85,908
Other long-term liabilities	62,458		45,336
Total liabilities	167,989		131,244
Shareholders’ equity
Common shares	1,902		1,858
Additional paid-in capital	271,019		243,165
Retained earnings	57,749		87,078
Accumulated other comprehensive income	(3,039)		3,296
Total shareholders’ equity	327,631		335,397	$ 296,608	$ 263,477
Total liabilities and shareholders’ equity	$ 495,620		466,641
ASU 2016-02 [Member]
Current assets
Cash, cash equivalents, and restricted cash		$ 72,189
Accounts receivable, net		77,747
Inventories		76,847
Prepaid expenses and other current assets		17,841
Total current assets		244,624
Property, plant, and equipment, net		42,835
Intangible assets, net and goodwill		124,298
Deferred income taxes		33,299
Other long-term assets		41,850
Total assets		486,906
Current liabilities
Accounts payable		17,989
Other current liabilities		70,085
Total current liabilities		88,074
Other long-term liabilities		63,364
Total liabilities		151,438
Shareholders’ equity
Common shares		1,858
Additional paid-in capital		243,165
Retained earnings		87,149
Accumulated other comprehensive income		3,296
Total shareholders’ equity		335,468
Total liabilities and shareholders’ equity		$ 486,906
ASU 2016-02 [Member] | Impact of Adoption of ASC 842 [Member]
Current assets
Prepaid expenses and other current assets			(15)
Total current assets			(15)
Deferred income taxes			71
Other long-term assets			20,209
Total assets			20,265
Current liabilities
Other current liabilities			2,166
Total current liabilities			2,166
Other long-term liabilities			18,028
Total liabilities			20,194
Shareholders’ equity
Retained earnings			71
Total shareholders’ equity			71
Total liabilities and shareholders’ equity			$ 20,265