Income Tax	3 Months Ended
Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income Tax	Income Tax The provision for income taxes for the three months ended June 30, 2013 and 2012 was approximately $6.4 million and $7.8 million, respectively. The effective tax rates were 33.0% and 33.6% for the three months ended June 30, 2013 and 2012, respectively. The effective rate for the three months ended June 30, 2013 decreased as compared to the same prior year period due to a net benefit from the federal research and development tax credit, an increase benefit in qualified production activities deduction, and a decreased benefit of current period discrete items. Uncertain tax positions As of June 30, 2013, the Company had recorded a liability of $734 for unrecognized tax benefits related to various federal and state income tax matters. If recognized, this amount would reduce the Company’s effective tax rate. The tax liability for the three months ended June 30, 2013 increased from the same prior year period by $320 due to changes in contingent liability reserves and certain tax positions related to acquired companies. The Company is no longer subject to U.S. federal income tax examinations for tax years before 2012. With few exceptions, the Company is no longer subject to state or local income tax examinations for tax years before 2008. The Company does not anticipate that total unrecognized tax benefits will significantly change due to the settlement of audits or the expiration of statute of limitations within the next twelve months.

Income Tax

3 Months Ended

Jun. 30, 2013

The provision for income taxes for the three months ended June 30, 2013 and 2012 was approximately $6.4 million and $7.8 million, respectively. The effective tax rates were 33.0% and 33.6% for the three months ended June 30, 2013 and 2012, respectively. The effective rate for the three months ended June 30, 2013 decreased as compared to the same prior year period due to a net benefit from the federal research and development tax credit, an increase benefit in qualified production activities deduction, and a decreased benefit of current period discrete items.

Uncertain tax positions

As of June 30, 2013, the Company had recorded a liability of $734 for unrecognized tax benefits related to various federal and state income tax matters. If recognized, this amount would reduce the Company’s effective tax rate. The tax liability for the three months ended June 30, 2013 increased from the same prior year period by $320 due to changes in contingent liability reserves and certain tax positions related to acquired companies.

The Company is no longer subject to U.S. federal income tax examinations for tax years before 2012. With few exceptions, the Company is no longer subject to state or local income tax examinations for tax years before 2008. The Company does not anticipate that total unrecognized tax benefits will significantly change due to the settlement of audits or the expiration of statute of limitations within the next twelve months.