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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2019
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]

Long-term debt consists of the following:
 
September 30, 2019
 
December 31, 2018
Revolving line of credit
$
247,000

 
$
312,000

Term loan, net of deferred debt issuance costs of $1,627 and $311 in 2019 and 2018, respectively
256,748

 
144,064

2.625% convertible notes, net of deferred debt issuance costs of $9,421 and unamortized discount of $45,576 in 2019
290,003

 

Financing leases
420

 

Mortgage notes

 
836

Total debt
794,171

 
456,900

Less:  Current portion
13,482

 
18,336

Total long-term debt
$
780,689

 
$
438,564


Schedule of Maturities of Long-term Debt [Table Text Block]
The scheduled maturities of long-term debt outstanding at September 30, 2019 are as follows:

Remaining, 2019
$
3,312

2020
13,250

2021
18,219

2022
24,844

2023
445,750

2024
345,000