Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Leases - Summary of Net Impact of Adoption Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash, cash equivalents, and restricted cash	$ 49,208		$ 72,189	$ 77,056	$ 81,157
Accounts receivable, net	79,615		77,747
Inventories	79,128		76,847
Prepaid expenses and other current assets	16,387		17,856
Total current assets	224,338		244,639
Property, plant, and equipment, net	63,727		42,835
Intangible assets, net and goodwill			124,298
Deferred income taxes	36,575		33,228
Other long-term assets	26,735		21,641
Total assets	479,316		466,641
Current liabilities
Accounts payable	19,643		17,989
Other current liabilities	43,652		67,919
Total current liabilities	63,654		85,908
Other long-term liabilities	51,101		45,336
Total liabilities	135,634		131,244
Shareholders’ equity
Common shares $0.10 par value; 50,000,000 shares authorized; 18,790,769 and 18,579,688 issued and outstanding as of March 31, 2019 and December 31, 2018, respectively	1,879		1,858
Additional paid-in capital	252,862		243,165
Retained earnings	87,108		87,078
Accumulated other comprehensive income	1,833		3,296
Total shareholders’ equity	343,682		335,397	$ 313,174	$ 296,608
Total liabilities and shareholders’ equity	$ 479,316		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 $0.10 par value; 50,000,000 shares authorized; 18,790,769 and 18,579,688 issued and outstanding as of March 31, 2019 and December 31, 2018, respectively		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