Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2016

Mar. 31, 2015

Dec. 31, 2015

Summary Of Significant Accounting Policies [Line Items]

Allowance for doubtful accounts

$ 584

$ 627

Proceeds from Sale and Collection of Receivables

42,000

Gain (Loss) on Sale of Accounts Receivable

(239)

Accumulated depreciation

51,807

$ 43,074

Capitalized computer software placed in service

0

$ 1,196

Shipping and handling costs

$ 8,870

$ 7,994

Reclassifications [Text Block]

Reclassifications:

Certain amounts in the prior year financial statements were reclassified to conform to the current year’s presentation. These reclassifications had no impact on the prior periods' net income, cash flows or stockholders' equity. As a result of implementation of Accounting Standards Update ("ASU") No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30) during the first quarter of 2016, the Company reclassified deferred financing fees from non-current assets to long term liabilities. The reclassification reduced deferred financing fees and long term liabilities by approximately $18,600 and $19,400 as of March 31, 2016 and December 31, 2015, respectively.