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Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company recognized income tax expense of $7.5 million and $5.7 million for the three months ended September 30, 2017 and 2016, respectively. The increase in tax expense in the current-year quarter is largely due to higher pre-tax income levels, as well as the recognition of $0.6 million of additional tax expense associated with a change in the state tax rate in Illinois. The effective tax rate for the three months ended September 30, 2017 was 37.5%, compared to 43.2% in the prior-year quarter, when additional valuation allowance was recorded in Canada. For the nine months ended September 30, 2017 and 2016, the Company recognized income tax expense of $17.4 million and $16.2 million, respectively. The increase in tax expense in the nine months ended September 30, 2017 is largely due to higher pre-tax income levels, as well as the recognition of $0.6 million of additional tax expense associated with a change in the state tax rate in Illinois. The effective tax rate was 35.8% and 37.2% for the nine months ended September 30, 2017 and 2016, respectively.

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- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

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