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Basis of Presentation - Schedule of Condensed Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Refundable income taxes | $ 6,333 | $ 9,260 | $ 1,073
Total current assets | 179,511 | 180,386 | 243,580
Total assets | 355,820 | 360,382 | 433,459
Retained earnings | 139,546 | 136,354 | 148,458
Total stockholders' equity | 252,951 | 248,884 | 261,850
Total liabilities and stockholders' equity | 355,820 | 360,382 | 433,459
As Previously Reported [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Refundable income taxes |  | 11,474 |
Total current assets |  | 182,600 |
Total assets |  | 362,596 |
Retained earnings |  | 138,568 |
Total stockholders' equity |  | 251,098 |
Total liabilities and stockholders' equity |  | 362,596 |
Adjustment [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Refundable income taxes |  | (2,214) |
Total current assets |  | (2,214) |
Total assets |  | (2,214) |
Retained earnings |  | (2,214) |
Total stockholders' equity |  | (2,214) |
Total liabilities and stockholders' equity |  | $ (2,214) |

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